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Get it between 2025-01-01 to 2025-01-08. Additional 3 business days for provincial shipping.
【Size】Total 4 pieces, 3 pcs dry diamond drill bits (1/4" 6mm), Round Shank and 1pc Diamond Chamfer bit (4/5" 20mm).
【Application】For Granite, Tile, Ceramic, Marble, Stone, Porcelain, Masonry. Use water for longer time.
【Wax inside】For cooling,our Diamond Tipped Drill Bits have wax cores built-in which automatically absorb and dissipate heat as you go.
【Vacuum Brazed technology】 Higher efficiency, faster working speed, longer service life.
【Note】Used for hand drill and bench drill,Hand drill at 2000-5000RPM, the slower the shorter the life.