Ultimate Punching Drill Bits save time& effort for your metal/wood drilling project!
- Made of fine quality material, low resistance, high hardness, improving work efficiency.
- The design of triangle shank makes the clamping more tight and does not slip.
- U-shaped spiral is smooth and flat, and the drilling is smoother.
- Strong toughness and wear resistance, can be installed in electric drills.
- Ideal for everyday drilling on multiple materials including steel, alloy, tile, concrete, brick, glass, plastic, wood and more.
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