18 Pc HSS Tap & Drill Set UNF Unified National Fine?
Supplied in Metal Index Case with Tap & Drill Chart
6 - 40 Tap, #33 Drill
8 - 36 Tap, #29 Drill
10 - 24 Tap, #25 Drill
10 - 32 Tap, #21 Drill
1/4'' - 28 Tap, #3 Drill
5/16'' - 20 Tap, #F Drill
3/8'' - 24 Tap, #Q Drill
7/16 - 20 Tap, 25/64'' Drill
1/2 - 20 Tap, 29/64'' Drill
Part Number TAPD-18UNF