Size: No 10-241/4″: 1/4″Across the Flat: 0.59″
HSS BSPF
3/8-19 BSPF Taper Tap
1/4-19 BSPF Bottom Tap
1/8-28 BSPF Plug Tap
3″-11 BSPF Plug Tap
1″-11 BSPF Bottom Tap
5/8-14 BSPF Bottom Tap
1/2-14 BSPF Bottom Tap
3″-11 BSPF Taper Tap
2″-11 BSPF Plug Tap
7/8-14 BSPF Bottom Tap