TOOLMAKER Machinist PRECISION Measure n Gage Course
on CD

TABLE OF CONTENTS.................................................. ii

Lesson 1: PRECISION GAGES AND MEASURING TOOLS,
AND TYPES OF FITS, TOLERANCES, AND ALLOWANCES ........ 1

TASK 1: Describe the different types of fits, tolerances,
and allowances used in the machinist trades 1

Clearance Fits.
Transitional Fits.
Locational Clearance Fits.
Locational Transitional Fits.
Interference Fits.
Shrink fit
Tolerances
Clearance Allowance.
Interference Allowance.


TASK 2: Describe the proper use and care of
precision gages and measuring tools ............................ 9

Adjustable Gages.
Dial indicators
Vernier Caliper.
Vernier Height Gage.
Depth Gages.
Vernier Depth Gage.
The Rule Depth Gage.

Micrometer Depth Gage.
Dial Vernier Caliper.
Dial Bore Gage.
Internal Groove Gage.
Cutter Clearance Gage.
Surface Gage.
Toolmaker's Buttons.

Small Hole Gages.
Snap Gages.
Thread Tool Gage.
Radius Gage.
Straightedges.
Sine Bar.
Parallel (Bars) Blocks.
Ring and Plug Gages.
Gage Blocks.
Classes and Standards for all Makes of Gages.

Thread Measuring Wires.
Surface Plate.
Outside Micrometer.
Reading a Vernier Micrometer.

Inside Micrometer.
Depth Micrometer.
Thread Micrometers.
Universal Vernier Bevel Protractor.
Gear Tooth Vernier Caliper.

Practical Exercise 1........................................... 84

Answers to Practical Exercise 1 ................................ 86

REFERENCES......................................................... 87