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Index Column

Index

3 Phase Power

7-Segment Code
7-segment display - ladder logic

74XXX TTL Data Sheets

A


abampere

abbreviations:
     Electrical Engineering Abbreviations and Acronyms
     Military Abbreviations and Acronyms

ABCD matrices for transmission lines

Absolute Pressure

Absolute Viscosity

absorption spectra

acids - pH of common inorganic acids

activity series of metals

adder:
     full-adder
     half-adder

air composition

Air Pressure Loss For Every 100 Feet of Clean Commercial Steel Pipe

American National Standard Letter Designation for Welding and Allied Processes (ANSI/AWS A2.4-9I)

American Standard Code for Information Interchange (ASCII)

American Wire Gauge (AWG)

Ampacity of Copper and Aluminum Insulated Wire

ampere

Ampere's Circuital Law

amplifier - General purpose Amplifier

amplifier - general purpose inverting amplifier

angle between two vectors

Angular Speed Formula

Angular Velocity Formula

apparent power

area of two dimensional shapes

area unit conversion calculator

Atmospheric Pressure at Altitudes Above Sea Level

AutoCAD Notes

AutoDesk AutoCAD Notes

automation

AWG (American Wire Gage)



battery technology

beam:
     structural beams

Beam Deflection

Beam Design and Analysis for Moment and Shear

Belt:
     V-belt:
          Commercially available "5V" Sheave Pitch Diameter
          dimensions
          sizing chart
          Belt Reduced Power Capability with Contact Angle

Bernoulli's Law

bevel gear

Blot-Savart Law for Magnetic Field & Lorentz Force Equation

Bleeder Valve

blinking lamp circuit - ladder logic

bolt: Eccentrically Loaded Bolts

bolt and nut materials

bolt technical reference guide

Boltzmann constant

Bonding between atoms and molecules

boolean algebra summary

Boundary Conditions

Boyle's Law

BSPT (British Standard Pipe Thread)

BSPP (British Standard Parallel Pipe)

Bulk Modulus of Common Substances

Buoyancy Force

 

camera: contact lens camera

camera: vision system cameras

Capacitance, Conductance, and Inductance

Capacitor

capacitor energy storage

Cartesian Coordinate System

Cartesian, Cylindrical, Spherical Conversions

centroids of two dimensional shapes

Ceramics

chain pitch selection chart for roller chains

chain sprocket and platewheels

Charge Distributions

charge of an electron

charge of a proton

Charles's Law

Chebyshev Frequency Response for n=4

Check Valve

circle

circuit breaker

circuit components

co-function identities

codes:
     2 out of 5 code
     7-Segment Code
     ASCII
     Gray Codes

Coefficients of Friction

Coefficients of Linear Thermal Expansion

Column Design and Analysis

Combined Stresses, Axial, Bending, Shear: Mohr's Circle

comparator

Comparison of Properties of Straight Tungsten Carbides and Tool Steels

complex trigonometric identities

complex numbers

Complex Numbers and Phasor Techniques

compressor

Compton scattering

connectors

connectors - modular connectors

Connections: Bolted and Welded

contact configurations

contact lens camera

contactor

Continuity Equation in Fluid Mechanics

Continuity Equation in Electromagnetism

conversions (number base):
     binary to decimal conversion
     binary to hexadecimal conversion
     binary to octal conversion
     decimal to binary conversion
     decimal to hexadecimal conversion
     decimal to octal conversion
     hexadecimal to binary conversion
     hexadecimal to decimal conversion
     octal to binary conversion
     octal to decimal conversion

conversions between two-port network parameters

Coordinate Systems in Electromagnetism

copper tubing
     dimensions of type K copper tubing

Coulomb's Law

CREO Parametric

cross product

Crystal structures for common metals at room temperature

curl operator

cylinder (pneumatic or hydraulic)

Cylindrical Coordinate System

Cylindrical, Spherical, Cartesian Conversions


D Latch

Dalton's Law of partial pressure

Darcy's Formula

data sheets

DC and AC Circuits

de Broglie Theorem

decibel dB

Decimal Equivalent Chart

decoder - ladder logic

Deflection in Beams

demultiplexer

density unit conversion calculator

dielectric constants of selected materials

dielectric strengths of selected materials

Dielectrics as related to Displacement Flux Density

differential operators

Differential Unit Vector in Cartesian Coordinate System

Differential Unit Vector in Cylindrical Coordinate System

Differential Unit Vector in Spherical Coordinate System

Dimensions of Steel Pipe

Dimensions of Steel Valve and Steel Fittings

diode

diode - Light Emitting Diode (LED)

diode - Schmitt Trigger

diode: Voltage drop across a diode

Directional Valve

distance between point and line

distance between point and plane

Divergence

divergence operator

Divergence Theorem

double angle formulas

dot product

drill bit size conversions

Ductility of Selected Materials Measured as Percent Elongation

earth

Eccentrically Loaded Bolts

efficiency

elastic modulus for selected materials

elastomer: Hardness Scale comparison table of metals and elastomer

electric charge

electric current

Electric Field Intensity

Electric Stored Energy Density

Electrical Metallic Tubing - EMT Sizes, Weights, and Dimensions

Electromagnetic Spectrum

Elements of the Periodic Table

EMT Conduit Sizes, Weights, and Dimensions

encoder

energy storage in a capacitor

Energy Storage in Electric and Magnetic Fields

energy unit conversion calculator

equation of a plane

equations

Euler identity

even-odd identities

Exclusive OR (XOR) vs Exclusive NOR (XNOR)

expansion for hyperbolic functions

expansion for sine, cosine, tangent, cotangent

fans as applied to electrical enclosures

Faraday's Law

Faraday's Law and Ampere's Circuital Law in differential Form

fastener: Thread Series Designation

fastener technical reference guide

FDA:

21 CFR 211 - CURRENT GOOD MANUFACTURING PRACTICE FOR FINISHED PHARMACEUTICALS

FlexiBowl

flip-flop using Omron KEEP instruction

Flow Curve and Typical Values of Strength Coefficient K and Strain Hardening Exponent n for Selected Materials

Flow of Air Through Schedule 40 Steel Pipe

Flow of Water Through Schedule 40 Steel Pipe

Fluid Sealing Material Compatibility Chart

force unit conversion calculator

fractions to decimal conversion table

Frequency Allocation Chart in the US (pdf)

full-adder - ladder logic

Gauss' Law

Gauss' Law derived from Conservation of Charge and Ampere's Law

GD&T (Geometric Dimensioning and Tolerancing)

gear:
     bevel gear
     Gear Types

General Energy Equation (Fluid Mechanics)

Geneva drive

geometric tolerancing

Geometry

golden ratio

golden rectangle

Gradient in Cartesian, Cylindrical and Spherical Coordinates

gradient operator

Gray Code:
     Gray Codes
     how to generate gray codes

Greek alphabet

grippers

parallel grippers

needle grippers (overview)

H Beams & Wide Flange ASTM-A36/A572

H-Bridge

Hagen Poiseuille Law for Laminar Flow

half angle formulas

half-adder - ladder logic

Hamming Codes

Hand Pump System

Hardness Scale comparison table of metals and elastometers

Hazen-Williams Constants for Various Materials

head, Velocity

hexagon

HMI (Human Machine Interface)

hydraulic Horsepower

hydraulic Radius

hydraulic schematic symbols

hyperbolic functions

I Beams ASTM-A36/A572

identities:
     co-function identities
     complex trigonometric identities
     euler identity
     even-odd identities
     Pythagorean identities
     quotient identities
     reciprocal identities
     trigonometric identities
     vector identities

image parameters for T and pi networks

inductor

Inequalities

Infrared Spectrum

insulation: Relationship between an Insulator's K-factor, C-factor, and R-factor

integral tables

intensity of a sound wave

interlock circuit in Ladder Logic

Internal Fluid Pressure (psi) on Tubing

inverter

JK Flip Flop

Junior Beams ASTM-A36

Jupiter

kinematic equations

Kinematic Viscosity

Kirchhoff's Current Law

Ladder Logic Circuits

laminar flow: Hagen Poiseuille Law for Laminar Flow

Laplace Transforms

Laplace's Equation

Laplacian operators

Laplacian of a Scalar Function and a Vector

Latches

Law of Conservation of Charge

Law of cosines

length unit conversion calculator

Lens Types

Lenz's Law

Light Emitting Diode (LED)

Limits - Calculus

List of Natural Elements of the Periodic Table

logarithmic constant

logic functions - ladder logic

logic gates

Lorentz Force Equation

low-pass RC filter

Magnetic Field--Ampere's Law, Biot-Savart Law

Magnetic Field Intensity

Magnetic Flux Density

magnetic force on a moving charge

Magnetic Stored Energy Density

Magnetic Vector Potential

mass/weight unit conversion calculator

mathematical symbols

matrices

Maxwell's equations

mechanical power

Mechanics

mechanisms

Melting Points for Some Common Metals and Alloys

mesh sizes: Strainer Mesh Sizes and Size of Solids Removed When Strainer is Clean

Metals

metals: Hardness Scale comparison table of metals and elastometers

Mesh Size Chart

Microwave Oven (pdf)

millimeters to decimal conversion table

modular connectors

Modulus of elasticity for selected materials

modulus of rigidity

moment of inertia

moment of inertia transfer formula

momentum

Moody Friction Factor Chart

MOSFET:
     N-Channel MOSFET

Motion Control Using Servo and Stepper Motors

Motorola microcontrollers

motors:
     electric motor family tree
     classification of Motors by application
     NEMA classification of Motors
     PWM - pulse width modulation
     Sizing a Motor for Hydraulic Pump
     Standard Electric Motor Sizes
     DC Motor - Compound Wound

multiplexer

Multiplication Table (1 thru 12)

 

NAND (Diode-Transistor Logic)

needle grippers (overview)

NEMA Enclosure Ratings

NEMA Motor Frame Sizes

Neutralization Number

Newton's laws of motion

network functions: Types of Network Functions

NOR (Diode-Transistor Logic)

NPN Transistor

NPT (National Pipe Thread)

NPS (Nominal Pipe Size) - Straight pipe sizes

nut:
     bolt and nut materials

Ohm's Law

OSHA - Safeguarding Equipment and Protecting Employees from Amputations

PanelView: How to connect to PC

parameters:
     image parameters for T and pi networks

Pascal's Law

Permeability of a vacuum (or free space)

pi networks: image parameters for T and pi networks

pipe: dimensions and properties of schedule 40 and 80

Pipe Fitting Dimensions

pipe thread types

periodic table: List of Natural Elements of the Periodic Table

PLA

Plank's Law

plastics

PLC (Programmable Logic Controller)

PNP transistor

Poisson's Equation

Poisson's ratio

polar moment of inertia

Polarization

polygon

polymers

Potential Function for Static and Non Static Fields

power consumed by a resistor

Power developed by the product of the force and velocity

power definition

power - Mechanical Power

power-reducing/half angle formulas

power series representation

power:
     electrical apparent power

power transmitted by a shaft given a torque and speed of a shaft

power unit conversion calculator

powers of two

pressure (psi) conversion factors

Principle of Reciprocity

pressure: Atmospheric Pressure at Altitudes Above Sea Level

pressure: Internal Fluid Pressure (psi) on Tubing

product-to-sum formulas

proximity sensor - inductive

PTC CREO Parametric Notes

pump system: Hand Pump System

PWM (pulse width modulation)

Pythagoras' Theorem

Pythagorean identities

Pythagorean Triples

 

quadratic formula and proof

quotient identities

radius of gyration

range equation

radian measure

RC Time Delay

reciprocal identities

regeneration circuit

Relationship between Shear stress and Tensile stress

relay

relief valve

resistivity

Reynold's Equation

robots - Types of Industrial Robots

Rockwell Hardness Scales

ROM (Read Only Memory)

rubbers

safety - machine safety

safety - standards for machine safety

Sanitary Fittings - Tri-Clamp

Saybolt Universal Viscosity

scalar product of two vectors

Schedule 40 pipe: Working Pressure In PSI (psi) in Standard Pipe, Extra Heavy Pipe, Double Extra Heavy Pipe

Schmitt Trigger Diode

Schrödinger's equation

Scissor Lift Mechanism

screw materials

screw tapping and clearance chart

screw thread pitch

screw thread series designations

screw thread types

seals: Fluid Sealing Material Compatibility Chart

sensors

seal in contact in Ladder Logic

Shear and Moment Diagrams by the Summation of Areas

shear strain

Shear Strength of Materials

shear stress analysis on a bolt in single shear

shear stress: Relationship between Shear stress and Tensile stress

sheetmetal gauge sizes and weight/ft^2

SI prefixes

Sieve Opening Size Chart

Sizing a Motor Horsepower (HP) for Drilling, Tapping, and Threading

Sizing a Motor horsepower (HP) for Hydraulic Pumps

Sizing a motors horsepower (Hp) and torque for turning a solid round disk

Skin Depth of Copper

Slider-Crank connecting rod angular speed and acceleration

software notes

solar system

spacecrafts

spark plug

Specific Gravity

specific gravity of gases

specific gravity of liquids

Specific Roughness and Hazen-Williams Constants for Various Materials

Specific Weight

Spectrum: Electromagnetic Spectrum

Spectrum: Infrared Spectrum

speed of sound

speed unit conversion calculator

Spherical Coordinate System

Spherical, Cylindrical, Cartesian Conversions

sprockets and platewheel types

SR Latch

SR Master-Slave Flip-Flop

Stainless Steel Chemical Composition

Standard Electric Motor Sizes

standards for machine safety

Stefan-Boltzmann Law

Stepper Motor Wiring Diagrams

Stokes' Theorem

straight pipe sizes - NPS

strain hardening exponent: Flow Curve and Typical Values of Strength Coefficient K and Strain Hardening Exponent n for Selected Materials

Strainer Mesh Sizes and Size of Solids Removed When Strainer is Clean

strength coefficient: Flow Curve and Typical Values of Strength Coefficient K and Strain Hardening Exponent n for Selected Materials

Strength of Materials

Stress-Strain Curves (pdf)

Stress Summary

Stresses in Beams and Built up Sections and Bolt Spacing

Structural Members

summing junction amplifier

sum or difference of two angles

sum-to-product formulas

sun

sun spot

symbols - electrical symbols

symbols - mathematical symbols

synchronous belt

T networks:
     image parameters for T and pi networks

Tangent Line Problem

tap drill reference

temperature unit conversion calculator

tensile strength: Yield Strength and Tensile Strength for Selected Metals

thermal conductivities of various media

thermal expansion

thermal expansion: Coefficients of Linear Thermal Expansion

Thread Series Designations

thread types - screw

thread types: pipe thread types

time delay - RC Time Delay

timing belt

toggle output with a single pushbutton - ladder logic

toggle output using single pushbutton with different TON and TOFF delays - Ladder Logic

Tonnage for Hole Punching

tool steel:
     Comparison of Properties of Straight Tungsten Carbides and Tool Steels

tool steels

Torricelli's Theorem

Torque Couplings

torque unit conversion calculator

torsion

torsional deflection of a shaft

transformer

transistor - NPN

transistor - PNP

Transmission Line - Parallel Plate

transmission line table of equations(pdf)

Transmission Line Terminated by Resistive Load

Transmission Line with Discontinuity

Tri-Clamp Sanitary Fittings

triangle

trigonometric functions

trigonometric identities

trigonometric values for common angles

Triple Scalar Product

tubing: Dimensions of Type K Copper Tubing

tungsten carbide:
     Comparison of Properties of Straight Tungsten Carbides and Tool Steels

Two-Phase Alternating Current

Two-Port Network Conversions

Types of Network Functions

unit circle

Unit Vectors: Cylindrical & Cartesian, Spherical & Cartesian

USB - Universal Serial Bus

V-belt: Commercially available "5V" Sheave Pitch Diameter V-Belts

V-belt dimensions

V-belt sizing chart

V-Belt Reduced Power Capability with Contact Angle

valve: Bleeder Valve
valve: Check Valve
valve: Directional Valve
valve: Relief Valve

vector:
     angle between two vectors
     vector cross product
     scalar product of two vectors
     vector identities

viscosity

viscosity Index

vision cameras

vision systems

voltage

voltage - worldwide voltages

voltage divider

Voltage drop across a diode

voltage follower

voltage peak detector

voltage regulator

volume unit conversion calculator

wedge physics

weight/mass unit conversion calculator

Welding Filler Metals For Various Aluminum Alloys

welding processes

welding symbol: Location of Elements of a Welding Symbol

Wide Flange & H Beams ASTM-A36/A572

Wien's Law

Wire:
     American Wire Gauge (AWG)
     Ampacity of Copper and Aluminum Insulated Wire

Working Pressure In PSI (psi) in Standard Pipe, Extra Heavy Pipe, Double Extra Heavy Pipe

worldwide voltages

Exclusive OR (XOR) vs Exclusive NOR (XNOR)

Yield Strength and Tensile Strength for Selected Metals

Young's modulus of elasticity


 
 
 

Tap Drill Reference

 

Imperial Tap Drill Chart

Machine Screw Size Number of Threads Per Inch Minor Dia. Tap Drills Clearance Hole Drills

Aluminum, Brass & Plastics

75% Thread

Stainless Steel, Steels & Iron

50% Thread

All Materials
Close Fit Free Fit
No. or Dia. Major Dia. Drill Size Decimal Equiv. Drill Size Decimal Equiv. Drill Size Decimal Equiv. Drill Size Decimal Equiv.
0 .0600 80 .0447 3/64 .0469 55 .0520 52 .0635 50 .0700
1 .0730 64 .0538 53 .0595 1/16 .0625 48 .0760 46 .0810
72 .0560 53 .0595 52 .0635
2 .0860 56 .0641 50 .0700 49 .0730 43 .0890 41 .0960
64 .0668 50 .0700 48 .0760
3 .0990 48 .0734 47 .0785 44 .0860 37 .1040 35 .1100
56 .0771 45 .0820 43 .0890
4 .1120 40 .0813 43 .0890 41 .0960 32 .1160 30 .1285
48 .0864 42 .0935 40 .0980
5 .1250 40 .0943 38 .1015 7/64 .1094 30 .1285 29 .1360
44 .0971 37 .1040 35 .1100
6 .1380 32 .0997 36 .1065 32 .1160 27 .1440 25 .1495
40 .1073 33 .1130 31 .1200
8 .1640 32 .1257 29 .1360 27 .1440 18 .1695 16 .1770
36 .1299 29 .1360 26 .1470
10 .1900 24 .1389 25 .1495 20 .1610 9 .1960 7 .2010
32 .1517 21 .1590 18 .1695
12 .2160 24 .1649 16 .1770 12 .1890 2 .2210 1 .2280
28 .1722 14 .1820 10 .1935
32 .1777 13 .1850 9 .1960
1/4 .2500 20 .1887 7 .2010 7/32 .2188 F .2570 H .2660
28 .2062 3 .2130 1 .2280
32 .2117 7/32 .2188 1 .2280
5/16 .3125 18 .2443 F .2570 J .2770 P .3230 Q .3320
24 .2614 I .2720 9/32 .2812
32 .2742 9/32 .2812 L .2900
3/8 .3750 16 .2983 5/16 .3125 Q .3320 W .3860 X .3970
24 .3239 Q .3320 S .3480
32 .3367 11/32 .3438 T .3580

7/16

.4375

14 .3499 U .3680 25/64 .3906

29/64

.4531

15/32

.4687

20 .3762 25/64 .3906 13/32 .4062
28 .3937 Y .4040 Z .4130
1/2 .5000 13 .4056 27/64 .4219 29/64 .4531 33/64 .5156 17/32 .5312
20 .4387 29/64 .4531 15/32 .4688
28 .4562 15/32 .4688 15/32 .4688
9/16 .5625 12 .4603 31/64 .4844 33/64 .5156 37/64 .5781 19/32 .5938
18 .4943 33/64 .5156 17/32 .5312
24 .5114 33/64 .5156 17/32 .5312
5/8 .6250 11 .5135 17/32 .5312 9/16 .5625 41/64 .6406 21/32 .6562
18 .5568 37/64 .5781 19/32 .5938
24 .5739 37/64 .5781 19/32 .5938
11/16 .6875 24 .6364 41/64 .6406 21/32 .6562 45/64 .7031 23/32 .7188

3/4

.7500

10 .6273 21/32 .6562 11/16 .6875

49/64

.7656

25/32

.7812

16 .6733 11/16 .6875 45/64 .7031
20 .6887 45/64 .7031 23/32 .7188
1-3/16 .8125 20 .7512 49/64 .7656 25/32 .7812 53/64 .8281 27/32 .8438
7/8 .8750 9 .7387 49/64 .7656 51/64 .7969 57/64 .8906 29/32 .9062
14 .7874 13/16 .8125 53/64 .8281
20 .8137 53/64 .8281 27/32 .8438
15/16 .9375 20 .8762 57/64 .8906 29/32 .9062 61/64 .9531 31/32 .9688
1 1.000 8 .8466 7/8 .8750 59/64 .9219 1-1/64 1.0156 1-1/32 1.0313
12 .8978 15/16 .9375 61/64 .9531
20 .9387 61/64 .9531 31/32 .9688
1-1/16 1.0625 18 .9943 1.000 1.000 1-1/64 1.0156 1-5/64 1.0781 1-3/32 1.0938
1-1/8 1.1250 7 .9497 63/64 .9844 1-1/32 1.0313 1-9/64 1.1406 1-5/32 1.1562
12 1.0228 1-3/64 1.0469 1-5/64 1.0781
18 1.0568 1-1/16 1.0625 1-5/64 1.0781
1-3/16 1.1875 18 1.1193 1-1/8 1.1250 1-9/64 1.1406 1-13/64 1.2031 1-7/32 1.2188

1-1/4

1.2500

7 1.0747 1-7/64 1.1094 1-5/32 1.1562

1-17/64

1.2656

1-9/32

1.2812

12 1.1478 1-11/64 1.1719 1-13/64 1.2031
18 1.1818 1-3/16 1.1875 1-13/64 1.2031
1-5/16 1.3125 18 1.2443 1-1/4 1.2500 1-17/64 1.2656 1-21/64 1.3281 1-11/32 1.3438
1-3/8 1.3750 6 1.1705 1-7/32 1.2187 1-17/64 1.2656 1-25/64 1.3906 1-13/32 1.4062
12 1.2728 1-19/64 1.2969 1-21/64 1.3281
18 1.3068 1-5/16 1.3125 1-21/64 1.3281
1-7/16 1.4375 18 1.3693 1-3/8 1.3750 1-25/64 1.3906 1-29/64 1.4531 1-15/32 1.4688
1-1/2 1.500 6 1.2955 1-11/32 1.3437 1-25/64 1.3906 1-33/64 1.5156 1-17/32 1.5312
12 1.3978 1-27/64 1.4219 1-7/16 1.4375
18 1.4318 1-7/16 1.4375 1-29/64 1.4531
1-9/16 1.5625 18 1.4943 1-12 1.500 1-33/64 1.5156 1-37/64 1.5781 1-19/32 1.5938
1-5/8 1.625 18 1.5568 1-9/16 1.5625 1-37/64 1.5781 1-41/64 1.6406 1-21/32 1.6562
1-11/16 1.6875 18 1.6193 1-5/8 1.6250 1-41/64 1.6406 1-45/64 1.7031 1-23/32 1.7188
1-3/4 1.750 5 1.5046 1-9/16 1.5625 1-5/8 1.6250 1-49/64 1.7659 1-25/32 1.7812

 

Metric Tap Drill Chart

Tap size Major
Dia (mm)
Threads
per
Tap Drill
(mm)
Tap Drill
(inch)
Clearance
(mm)
Clearance
(inch)
M1.6x0.35 1.6 0.35 1.25 #55 1.8 #49
M2x0.4 2.0 0.40 1.60 #52 2.4 #41
M2.5x0.45 2.5 0.45 2.05 #46 2.9 #32
M3x.05 3.0 0.50 2.50 #39 3.4 #29
M3.5x0.6 3.5 0.60 2.90 #32 3.9 #23
M4x0.7 4.0 0.70 3.30 #30 4.5 #16
M5x0.8 5.0 0.80 4.20 #19 5.5 7/32
M6x1 6.0 1.00 5.0 #8 6.6 G
M8x1.25 8.0 1.25 6.8 H 9.0 T
M8x1 8.0 1.00 7.0 J 9.0 T
M10x1.5 10.0 1.50 8.5 R 12.0 31/64
M10x1.25 10.0 1.25 8.8 11/32 12.0 31/64
M12x1.75 12.0 1.75 10.2 13/32 14.0 35/64
M12x1.25 12.0 1.25 10.8 27/64 14.0 35/64
M14x2 14.0 2.00 12.0 15/32 16.0 5/8
M14x1.5 14.0 1.5 12.5 1/2 16.0 5/8
M16x2 16.0 2.00 14.0 35/64 18.0 45/64
M16x1.5 16.0 1.50 14.5 37/64 18.0 45/64
M18x2.5 18.0 2.50 15.5 39/64 20.0 51/64
M18x1.5 18.0 1.50 16.5 21/32 20.0 51/64
M20x2.5 20.0 2.50 17.5 11/16 22.0 7/8
M20x1.5 20.0 1.50 18.5 47/64 22.0 7/8
M22x2.5 22.0 2.50 19.5 49/64 25.0 1
M22x1.5 22.0 1.50 20.5 13/16 25.0 1
M24x3 24.0 3.00 21.0 53/64 27.0 1-5/64
M24x2 24.0 2.00 22.0 7/8 27.0 1-5/64
M27x3 27.0 3.00 24.0 15/16 30.0 1-3/16
M27x2 27.0 2.0 25.0 1 30.0 1-3/16

 

Drill Chart - Standard Drill Sizes / Millimeter Sizes

(See typical tolerances of drilled holes at bottom of page)

Drill
(in.)
Decimal Drill
(in.)
Decimal Drill
(in.)
Decimal Drill
(mm)
Decimal
(in.)
Drill
(mm)
Decimal
(in.)
Drill
(mm)
Decimal
(in.)
80 .0135 1/8 .1250 O .3160 .35 .0138 3.4 .1339 8.0 .3150
79 .0145 30 .1285 P .3230 .4 .0157 3.5 .1378 8.1 .3189
1/64 .0156 29 .1360 21/64 .3281 .45 .0177 3.6 .1417 8.2 .3228
78 .0160 28 .1405 Q .3320 .5 .0197 3.7 .1457 8.25 .3248
77 .0180 9/64 .1406 R .3390 .55 .0217 3.75 .1477 8.3 .3267
76 .0200 27 .1440 11/32 .3437 .6 .0236 3.8 .1496 8.4 .3307
75 .0210 26 .1470 S .3480 .65 .0256 3.9 .1535 8.5 .3346
74 .0225 25 .1495 T .3580 .7 .0276 4.0 .1575 8.6 .3386
73 .0240 24 .1520 23/64 .3594 .75 .0295 4.1 .1614 8.7 .3425
72 .0250 23 .1540 U .3680 .8 .0315 4.2 .1654 8.75 .3445
71 .0260 5/32 .1562 3/8 .3750 .85 .0335 4.25 .1674 8.8 .3465
70 .0280 22 .1570 V .3770 .9 .0355 4.3 .1693 8.9 .3504
69 .0292 21 .1590 W .3860 .95 .0374 4.4 .1732 9.0 .3543
68 .0310 20 .1610 25/64 .3906 1.0 .0394 4.5 .1771 9.1 .3583
1/32 .0313 19 .1660 X .3970 1.05 .0413 4.6 .1811 9.2 .3622
67 .0320 18 .1695 Y .4040 1.1 .0433 4.7 .1850 9.25 .3642
66 .0330 11/64 .1719 13/32 .4062 1.15 .0453 4.75 .1870 9.35 .3661
65 .0350 17 .1730 Z .4130 1.2 .0472 4.8 .1890 9.4 .3701
64 .0360 16 .1770 27/64 .4219 1.25 .0492 4.9 .1929 9.5 .3740
63 .0370 15 .1800 7/16 .4375 1.3 .0512 5.0 .1968 9.6 .3780
62 .0380 14 .1820 29/64 .4531 1.35 .0531 5.1 .2008 9.7 .3819
61 .0390 13 .1850 15/32 .4687 1.4 .0551 5.2 .2047 9.75 .3839
60 .0400 3/16 .1875 31/64 .4844 1.45 .0571 5.25 .2067 9.8 .3858
59 .0410 12 .1890 ½ .5000 1.5 .0591 5.3 .2087 9.9 .3898
58 .0420 11 .1910 33/64 .5156 1.55 .0610 5.4 .2126 10.0 .3937
57 .0430 10 .1935 17/32 .5312 1.6 .0629 5.5 .2165 10.5 .4133
56 .0465 9 .1960 35/64 .5469 1.65 .0650 5.6 .2205 11.0 .4331
3/64 .0469 8 .1990 9/16 .5625 1.7 .0669 5.7 .2244 11.5 .4528
55 .0520 7 .2010 37/64 .5781 1.75 .0689 5.75 .2264 12.0 .4724
54 .0550 13/64 .2031 19/32 .5937 1.8 .0709 5.8 .2283 12.5 .4921
53 .0595 6 .2040 39/64 .6094 1.85 .0728 5.9 .2323 13.0 .5118
1/16 .0625 5 .2055 5/8 .6250 1.9 .0748 6.0 .2362 13.5 .5315
52 .0635 4 .2090 41/64 .6406 1.95 .0768 6.1 .2401 14.0 .5512
51 .0670 3 .2130 21/32 .6562 2.0 .0787 6.2 .2441 14.5 .5708
50 .0700 7/32 .2187 43/64 .6719 2.05 .0807 6.25 .2461 15.0 .5906
49 .0730 2 .2210 11/16 .6875 2.1 .0827 6.3 .2480 15.5 .6102
48 .0760 1 .2280 45/64 .7031 2.15 .0846 6.4 .2520 16.0 .6300
5/64 .0781 A .2340 23/32 .7187 2.2 .0866 6.5 .2559 16.5 .6496
47 .0785 15/64 .2344 47/64 .7344 2.25 .0886 6.6 .2598 17.0 .6693
46 .0810 B .2380 ¾ .7500 2.3 .0905 6.7 .2638 17.5 .6889
45 .0820 C .2420 49/64 .7656 2.35 .0925 6.75 .2658 18.0 .7087
44 .0860 D .2460 25/32 .7812 2.4 .0945 6.8 .2677 18.5 .7283
43 .0890 E .2500 51/64 .7969 2.45 .0965 6.9 .2716 19.0 .7480
42 .0935 ¼ .2500 13/16 .8125 2.5 .0984 7.0 .2756 19.5 .7677
3/32 .0937 F .2570 53/64 .8281 2.55 .1004 7.1 .2795 20.0 .7874
41 .0960 G .2610 27/32 .8437 2.6 .1024 7.2 .2835 20.5 .8071
40 .0980 17/64 .2656 55/64 .8594 2.65 .1043 7.25 .2855 21.0 .8268
39 .0995 H .2660 7/8 .8750 2.7 .1063 7.3 .2874 21.5 .8465
38 .1015 I .2720 57/64 .8906 2.75 .1083 7.4 .2913 22.0 .8661
37 .1040 J .2770 29/32 .9062 2.8 .1102 7.5 .2953 22.5 .8858
36 .1065 K .2811 59/64 .9219 2.9 .1142 7.6 .2990 23.0 .9055
7/64 .1093 9/32 .2812 15/16 .9375 3.0 .1181 7.7 .3031 23.5 .9252
35 .1100 L .2900 61/64 .9531 3.1 .1220 7.75 .3051 24.0 .9449
34 .1110 M .2950 31/32 .9687 3.2 .1260 7.8 .3071 24.5 .9646
33 .1130 19/64 .2968 63/64 .9844 3.25 .1280 7.9 .3110 25.0 .9843
32 .1160 N .3020 1 1.000 3.3 .1299        
31 .1200 5/16 .3125                

HOLE DIA TOLERANCE-STANDARD DRILLED HOLE TOLERANCES                   .0135 THRU .125   +.004/ -.001
FOR HOLES DRILLED WITH A DRILLING                                                               .1260 THRU .25     +.005/ -.001
MACHINE USING SUITABLE JIGS AND .                                                               .2510 THRU .500    +.006/-.001                 
FIXTURES, THE HOLE TOLERANCES DE-                                                              .5010 THRU .750     +.008/ -.001
PEND UPON THE DIAMETER OF THE HOLE                                                           .7510 THRU 1.000  +.010/ -.001
AND INCREASE AS THE HOLE DIAMETER                                                            1 .001  THRU 2.000  +.012/ -.001   
INCREASES. THE FOLLOWING ARE STANDARD            
TOLERANCES FOR GENERAL MACHINE                                                                    
WORK AND APPLY IN ALL CASES EXCEPT
WHERE GREATER OR LESSER ACCURACY IS                                                         
REQUIRED BY THE DESIGN.

 

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