New 10 pieces of 6mm (close to 1/4") Diamond coated hole saw / drill bits. The size is 6mm outside diameter and 5.5mm shank, can drill 30mm deep. Suitable for use in drill hole on glass, marble, tile or granite and jewelry.
New 10 pieces of 6mm (close to 1/4") Diamond coated hole saw / drill bits. The size is 6mm outside diameter and 5.5mm shank, can drill 30mm deep. Suitable for use in drill hole on glass, marble, tile or granite and jewelry.
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