Made of fine quality material, low resistance, high hardness, improving work efficiency.
The design of the triangular shank makes the clamping tighter and does not slip.
U-shaped spiral groove is smooth and flat, and the drilling is smoother.
It provides smooth and accurate drilling in tile, glass, brick wall, wood and so on.
Strong toughness and wear resistance, can be installed in electric drills.
Size: 6mm, 8mm, 10mm, 12mm
Material: High Carbon Steel
Fits all Triangular shank screwdrivers
Fast replacement composite cone, uses drill edged principle.
Drilling and tapping in one, one-step processing, greatly save processing steps and time costs, improve working efficiency.
Self-centering point, do not need center drilling or center punching.
High hardness, rustproof, , solid and durable.
4pcs Triangular shank drill bit
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