Cobalt Steel Shank has 3 flat sides for a positive grip.
Double Fluted…. automatically de-burrs as you drill.
Aluminum carrying case.
Sizes are:
1/4 in. shank, 6 step bit: 3/16 in.-1/2 in. (3/16, 1/4, 5/16, 3/8, 7/16 and 1/2).
1/4 in. shank, 9 step bit: 1/4 in.-3/4 in. (5/16, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16 and 3/4). 3/8" shank, 13 step bit: 1/8"-1/2" (1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32 and 1/2).
3/8 in. shank, 10 step bit: 1/4 in.-1 3/8 in. (1/4, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-3/8).
3/8 in. shank, 12 step bit: 3/16 in.-7/8 in. (3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16 and 7/16).
