Diamond vacuum brazed drill bit is the best choice for indoor dry drilling of porcerlain, granite, marble, dekton etc.
Size: from 5-150mm
Shank: M14, M10, 5/8''-11 thread
with water, it can drill more holes
We choose the best grade of diamonds for manufacturing our VB drill bit, grit of the diamond is 40/45#
Our dry drill bits are widely accepted among many European countries, our dry drill bits are your best choice.
We carefully choose the premium quality diamonds with stable brazing materials
Our dry drill bits are widely accepted among many European countries, our dry drill bits are your best choice.
We carefully choose the premium quality diamonds with stable brazing materials



Packing: Plastic tube, customized packing and stickers are available

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