Irwin Unibit 15502

Irwin Unibit

Tin Coated Step Drill Bit Set, 3 Pc

15502 58220
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Tin Coated Step Drill Bit Set, 3 Pc


ItemStep Drill Bit
Number of Pieces3
Size1/8 to 3/4"
Shank Size1/4 x 3/8"
Step Thickness1/32" and 1/16"
MaterialHardened steel
Includes 4XK66 (1/8 to 1/2"), 4XK68 (1/4 to 3/4"), 4XK67 (3/16 to 1/2")
Weight 0.350000


Tin Coated Step Drill Bit Set, 3 Pc, Size 1/8 To 1/2 In., Shank Size 1/4 x 3/8 In., Number of Hole Sizes 28, Step Thickness 1/32 In and 1/16 In, Includes 4XK66, 4XK68, 4XK67

Step Drill Bits
  • Ideal for drilling multiple diameter holes in steel, copper, brass, aluminum, PVC, wood, and laminates up to 1/8" thick. Irwin bits have Speed Point tip design and single flute cutting edge. Cobalt bits resist heat buildup and have 3-sided flattened shank.

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