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Preface

The purpose of this training circular is to provide a better
understanding of power-driven machine tools. It also supplements
technical manuals in the 9-3400-series covering power-driven machine
tools.

One of the main objectives is for this publication is to be clear and
understandable. Illustrations throughout this publication show the
step-by-step process of many machine shop operations. The tables,
charts, formulas, weights, and measurements in this publication can be
a ready reference for selecting the proper tooling and math formulas
for machining different materials.

The proponent of this publication is HQ TRADOC. Send comments and
recommendations on DA Form 2028 directly to the Department of the
Army, Training Directorate, ATTN: ATCL-AO, 801 Lee Avenue, Fort Lee,
Virginia 23801-1713.

Unless this publication states otherwise, masculine nouns and pronouns
do not refer exclusively to men.
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