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FAQ

No.20 Hex Shank Iron Drill Bits / No.20-L Hex Shank Long Iron Drill Bits / No.24 Hex Shank Concrete Drill Bits / No.26 Hex Shank Stainless Steel Drill Bits / No.30 Hex Shank Porcelain Tile Drill Bits

Q: Is there one point tip to advise for making a big hole by using the iron drill bits, stainless steel drill bits, concrete drill bits, and porcelain tile drill bits?
A: When you would like to make a big hole, please repeat to make a small hole wider. Then, it is more smoothly work and effectively less resistance for getting a big hole.

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