Min. Order Reference FOB Price
5 Pieces US$4.50-7.00 / Piece
Product Description
With Importing Diamonds / Professional Vacuum Brazed Dry Drill Bit manufacturer / Extremely fast drilling speed (10-20s/Hole) / Super good life under dry condition (At least 30holes on hard granite) 1. Vacuum brazed dry drill bits can be used in dry drilling of granites, marble, hard tiles, hard ...