Feature: Dry and Wet drilling on granite, marble, concrete, wall, ceramic tile, masonry and porcelain. Diamond protrudes 3/4 out of the bond so that the bits are characterized in very free cutting, high efficiency, excellent performance and long working life.

Diamond grit: 30#, 40#, 50#, 60#

Diameter:4-128mm

Connection: M14, 5/8‘‘-11 OR 1/2GAS

Shank shape: Round or Hexangular