Kart City Step Drill Bit Hole Drill Bit High Speed Steel Coated Step Drill Bit Hole Cutter Hex Shank Power Tools 4-12mm (Gold) - Product Features
Step cone drdifferent size holes from 4mm up to 12mm in diameter,optimum sto use center punch, compared with the ordinary twist drill is not easy to be broken.The Two Flute Design Tips Can Make The Penetration Faster Without Chipping.
High-speed steel with titanium coated to reduce friction and run cooler.
These Step Drill Bits Are Ideal For Variety Of Materials From Metal, Plastic, Fiberglass To WHoles.
Automatically Deburrs Holes As You Drill Two-FlutCutting.Very comfortable and easy towork
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