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IRWIN #4 Unibit Step Drill Bit

  • IRWIN #4 Unibit Step Drill Bit

IRWIN #4 Unibit Step Drill Bit

Item #: 27992 |  Model #: 10234

4.14 / 5 7 Reviews

#4 Unibit Step Drill Bit

  • 12 hole sizes
  • High speed steel fractional
  • Single-fluted cutting edge for greater control and rounder holes
  • Ideal for drilling holes in thin materials such as mild steel, copper, brass, aluminum, plexiglass, wood and laminates
  • 3-flatted shank won't slip in chuck
  • Speedpoint tip for fast starting
  • Laser marked sizes won't wear off with use
Bit Material High-speed steel
Number of Hole Sizes 12
Shank Style Hex
Shank Size 3/8-in
Diameters of Holes Drilled 3/16"-7/8" (1/16" steps)
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