System in the Tool Room, The different kinds of jigs, Locating schemes for drill jigs, Standard bushing for drill jigs, Some of the details of jig making, Miscellaneous jig details, Jig clamps and clamping methods, Milling fixtures of various types, Pneumatic fixtures for holding work, Uses and advantages of the latch jig, Designs of and materials for gages, External and internal thread gages, Miscellaneous manufacturing gages, The designing of machine vise jaws, Construction and uses of mandrels