23 CUTTERS-VIZ., ANGULAR, CIRCULAR-CORNERING, CONCAVE, CONVEX, FORMED, GEAR, GEAR-ROUGHING, KEYWAY, MILLING SCREW-SLOTTING, SPROCKET, STEP-STOCKING, TAP AND REAMER, T-SLOT AND TWIST-DRILL; MILLS-VIZ., FACE, END, SHELL, SIDE, HOLLOW AND INSERTED TOOTH; HOBS-VIZ., WORM, GENERATING, AND GROUND; KEYS AND KEYWAYS FOR MACHINE-TOOLS, SAWS, SLITTING-DISKS, CUTTING-OFF MACHINES; MACHINES FOR GRINDING AND MACHINES FOR SHARPENING CUTTERS, REAMERS, HOBS, AND MILLS; REAMERS AND REAMER SETS, DRILLS AND DRILL SETS, SCREWSLOTTERS, COLLETS, COLLET-BLANKS, COUNTERSINKS, BITS AND BIT-STOCK SETS, SLEEVES AND SOCKETS FOR DRILLS AND REAMERS, LATHE-SOCKETS, ARBORS, MANDRELS, JIGS, AND BUSHINGS