71
effect of lubricant 76
factors which limit 72
rules for calculating 74
Spherical turning 111
attachments for 113
"Spider" for supporting bushing while turning 48, 49
Spiral flutes, method of relieving hobs or taps with 128
Square thread and method of cutting 149, 159
Steadyrest, application of when boring 25
for engine lathe 23
Stop for lathe cross-slide when threading 155

Tap and die holders, releasing type 199
Taper attachment for lathe 88
practical application of 90
Taper boring with taper attachment 90
Taper threading, position of tool for 154
Taper turning, adjustment of tailstock center for 82
by offset-center method 80
examples of 83
height of tool for 94
in vertical boring mill 261
in vertical mill with horizontal and vertical feeds 262
setting tailstock center with caliper tool 85
setting tailstock center with square 87
with compound rest 95
with taper attachment 92, 93
Tapers, gage for accurate measurement of 97
Tapers, rules for figuring 97
Test indicator, truing buttons with 102, 103
Test or center indicator for use on lathe 100
Thread cutting, calculating change gears for 167
compound gearing for 170
cross-slide stop used for 155
indexing faceplate for multiple threads 153
in engine lathe 135