Whitworth thread (55? thread angle).
Pitch: 4.5-3.5TPI
55? thread angle
Insize 3241-4, DEPTH MICROMETER, 0-4", base 3.996_.669", 6928640326738
3M 83980, Roloc Disc Pad TR, Extra Hard 4 in 5/8 -11 Internal, 7000119300
3M 7494, 922, Disc Pad Holder 922, 2 in x 1/4 in Shank, 7000045864
Insize 2197, LARGE RANGE DIGITAL RADIUS GAGE, R1(4-590"/100-1500mm), R2(4-590"/100-1500mm), 697409778087
Insize 3241-4, DEPTH MICROMETER, 0-4", base 3.996_.669", 6928640326738
3M 83980, Roloc Disc Pad TR, Extra Hard 4 in 5/8 -11 Internal, 7000119300
3M 7494, 922, Disc Pad Holder 922, 2 in x 1/4 in Shank, 7000045864
Insize 2197, LARGE RANGE DIGITAL RADIUS GAGE, R1(4-590"/100-1500mm), R2(4-590"/100-1500mm), 697409778087
Whitworth thread (55? thread angle).
Pitch: 4.5-3.5TPI
55? thread angle
