4-Flute Spiral Step Drill Bit Set — Quick-Change Hex (2-Piece)
4-Flute Spiral Step Drill Bit Set — Quick-Change Hex (2-Piece)
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Two 4-flute spiral step bits covering 20 sizes between them. The 11-step bit drills 3/16"–1/2" in 1/32" increments for fine sizing. The 9-step bit drills 1/4"–3/4" in 1/16" increments for larger holes. HSS with titanium nitride. 1/4" hex shanks.
4-Flute Design, 20 Sizes Four cutting channels for reduced heat and faster chip clearance. Two bits cover 3/16"–3/4".
Fine & Standard Increments 11-step bit: 3/16"–1/2" in 1/32" increments. 9-step bit: 1/4"–3/4" in 1/16" increments.
1/4" Quick-Change Hex Compatible with impact tools and standard drill chucks. HSS #4241 with titanium nitride coating.
What's Included
- 1× 11-Step Bit: 3/16"–1/2" (1/32" increments)
- 1× 9-Step Bit: 1/4"–3/4" (1/16" increments)
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What are your sizing options?
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