Tc 9-524 fundamentals of machine tools

set screw 
- A plain screw used principally for locking
adjustable parts in position.
setup 
- The preparation of a machine tool to complete
a specific operation. It includes mounting the
workpiece and necessary tools and fixtures, and
selecting the proper speeds. feeds, depth of cut and
coolants.
shank 
- That part of a tool or similar object which
connects the principal operating part to the handle,
socket’, or chuck by which it is held or moved.
shims 
- Very thin sheets of metal made in precise
thickness and used between parts to obtain desired
fits. Sometimes they are laminated, to be pulled off
to the desired depth.
shoulder 
- A term for the step made between two
machined surfaces.
shrink fit 
- A class of fit made when the outer
member is expanded by heating to fit over a shaft, and
then contracts or shrinks tightly to the shaft when
cooled.
side cutter 
- A milling cutter that has cutting teeth on
the side as well as on the periphery or circumference.
side rake 
- That surface which slopes to the side of
the cutting edge. It may be positive or negative and is
combined with the back rake. See rake.
sine bar 
- A precision instrument for laying out,
setting, testing, and otherwise dealing with angular
work.
slabbing cutter 
- A wide, plain milling cutter having
helical teeth. Used for producing large, flat surfaces.
sleeve 
- See drill sleeve.
slitting saw 
- A narrow milling cutter designed for
cutoff operations or for cutting narrow slots.
Glossary - 14

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TC 9-524
slotter 
- An attachment which operates with a
reciprocating motion. Used for machining internal
slots and surfaces.