Features:
1.This set replaces 50 individual drill bits. Two-flute design gives you faster, smoother cutting. 3-sided (TRI-FLAT) shank will not slip in your drill's chuck. Cobalt coated for smoother cooler cutting."br"2.SELF STARTING - No need for a pilot hole."br"3.Cobalt coated to reduce friction and run cooler"br"4.Large bit has 3-sided shank and small bits have hex shank to prevent slip in drill chuck"br"5.Automatically deburrs holes as you drill"br"6.Long Life True M2 high speed steel"br"7.Includes protective padded aluminum case"br"Sizes:"br"# 1: 3/16 "to 1/2" 6 Steps (3/16 '', 1/4 '', 5/16 ", 3/8 '', 7/16 '', 1/2 '')
# 2: 1/8 "to 1/2" 13 Steps (1/8 ", 5/32", 3/16 '', 7/32 ", 1/4 '', 9/32", 5/16 "11/32", 3/8 ', 13/32', 7/16 '', 15/32 ", 1/2 '')
# 3: 1/4 "to 3/4 '' 9 Steps (1/4 '', 5/16", 3/8 ", 7/16", 1/2 ", 9/16", 5/8 "11/16", 3/4 ")
# 4: 1/4 "to 1-3 / 8" '10 Steps (1/4' ', 3/8 ", 1/2", 5/8 ", 3/4", 7/8 ", 1 ", 1-1 / 8" 1-1 / 4 ", 1-3 / 8")
# 5: 3/16 "to 7/8" 12 Steps (1/4 '', 5/16 ", 3/8", 7/16 ", 1/2", 9/16 ", 5/8" , 11/16 ", 3/4", 13/16 ", 7/8")
Drill size Shank Diameter
1/4-1-3/8 9mm
3/16-7/8 9mm
1/4-3/4 9mm
1/8-1/2 6mm
3/16-1/2 6mm
Package included:
1pc 1/4-1-3/8 Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set
1pc 3/16-7/8 Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set
1pc 1/4-3/4 Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set
1pc 1/8-1/2 Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set
1pc 3/16-1/2 Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set
1pc Aluminum Box
