Step Drill Bit, Fractional Self-Starting, 6 Number of Hole, 3/16 in Minimum Hole, 1/2 in Maximum Hole Size, Hex Shank, 1/4 in Shank Diameter, High Speed Steel, Black Oxide, Applicable Materials: Aluminum, Brass, Copper, Plastic, Stainless Steel, 1 Flutes
Features:
Single-flute cutting edge for greater control through steps
Hex shank prevents slipping in drill chuck
New Speed
Point tip penetrates faster than previous Unibits and prevents walking
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