Tips

FAQ

No.24 Hex Shank Concrete Drill Bits / No.30 Hex Shank Porcelain Tile Drill Bits

Q: Please tell me one point tip for keep using the long period of concrete drill bits and porcelain tile drill bits.
A: Please use water when you make a hole by using concrete drill bits and porcelain tile drill bits. It needs to adjust cooling down and rotation speed. Following this point, the drill bits can be used for a long period.

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