Item: Vacuum brazed diamond core bits with quick fitting shank, dry drilling bits, professional quality
Quantity: 3pcs (6mm+8mm+10mm)
Specificiation: quick fitting shank
Application: Dry drilling for porcelain tile, granite, marble
Feature:
1.Fast and Smooth drilling,
2.Long lifetime
3.Less Chipping
4.Minimizing any breakage
5.Less loss of material
6.Less heat generation
7.Better finish quality
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And dia 6mm 8mm 10mm 12mm are available and they are of the same prices. So you could ask for sending 1pc 6mm + 2pc 8mm or 3pcs 10mm ... Just leave us message, we will send you the core bits as per your request. Thank you.