Diamond Hole Saw

Diamond hole saws are designed to drill holes in glass, ceramics, porcelain, ceramic and porcelain tile, limestone, slate, marble, granite, stone, and fiberglass.
The cutting speed and life of a diamond hole saw are affected by the hardness and abrasiveness of the material plus the drill speed, pressure and lubrication.
Experience with a specific material quickly allows a person to determine the optimum drill speed, pressure, and lubrication to obtain the fastest cutting speed with the least effect upon hole saw life and risk of heat fractures or breakage.
However, when experience is lacking, it is best to start out with a very slow drill speed, very low pressure and lots of lubrication.
This starting point reduces risks to a minimum and extends hole saw life considerably.

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