Dry Diamond Core Drill Bits for Porcelain Granite tile Glass Ceramics Marble 5mm. Type:Diamond Core Drill BitsProduct name:Dry Diamond Core Drill BitsUse:Masonry DrillingMachine:Hand electric drill and Angle grinderProcess:Vacuum Brazed TechnologyShank Type:Hex shankUsage:DryPacking::Plastic case

Fit for angle grinders, the speed is about 12000 r, it is best to add water to cool during use.

Instructions for use: 1.Drill at an oblique angle first, and when positioning grooves appear, you can drill vertically

2. Slightly shake the hand drill when drilling (to facilitate chip removal and increase the drilling speed)

The dry diamond drill bit uses vacuum brazed technology which allows the dry bit to be used at a higher temperature to cut through hard porcelain tile, ceramics, marble and slate with ease.

The integrated lubrivant aids cooling and prolongs life, which means there is no requirement for additional lubricant.

Vaccum Brazed Diamond drilling bits, Dry drilling granite & marble, masonry, concrete, tile/ceramic, glass, hard plastic,etc.

Integrated lubricant, aids cooling and prolongs life, there is no requirement for additional lubricant.

Hexagonal Shank, prevents slippage in the chuck.

Laser etched, diameter on body for ease of identification.