Size: No 4-481 1/4″: 1/4″Across the Flat: 0.59″
HSS BSPF
1/4-19 BSPF Plug Tap
7/8-14 BSPF Bottom Tap
2″-11 BSPF Taper Tap
1 1/2-11 BSPF Taper Tap
1/16-28 BSPF Taper Tap
2 1/2-11 BSPF Taper Tap
1/2-14 BSPF Plug Tap
7/8-14 BSPF Plug Tap
3/4-14 BSPF Taper Tap
2 1/2-11 BSPF Plug Tap