67 0.250 0.250 0.225 0.200 0.280 0.250 24 0.330 0.300 0.440 0.400 0.555 0.515 0.670 0.625 0.925 0.860 1.050 0.985 3 1.050 1.265 11 1.475 1.390 116 1.700 1.710 0101100101010 HHHHHHH 1 2 2 2 2 2 2 2 2 TS400 100 222 32804 20 18 18 16 16 14 14 51% 2.400 2.290 51% 2.485 2.425 IO 3101 2.600 2.480 1 ++3 312 32 4 1212 NOTE. - -Tapper taps differ from machine taps in not having a the shank and when square on the end of the shank. They are used in nut tapping machines, the nuts being run over the tap on to full the tap is removed and the nuts slid off. placed for another lot of nuts. The tap is then re NOTE. These have no fixed standard form of thread, being sually something like an Acme thread in general appearance. NOTE. 2 114 2 2 2 2 2 2 2 2 No_koooko I 222 22 Jokoooko 41 0.170 0.150 51 0.330 0.300 6 0.490 0.455 0.730 I ooko ook ooko. 16 0.860 110 233333 ΙΟ 31% 91 0.825 ΙΟ 9 0.925 16 16 IO 15 16 IO 1.375 I 2 I 2 0.985 11 10 1.070 1 4 12 1.475 23434 12 1.600 25 5 13 1.700 1.265 11 1 1.390111 1.475 11 12 1.600 1 1 12 6 I -The Sellers hob is designed to be run on centers, the work, such as hand or die chasers, being held against it and fed along by the lathe carriage. |