To prevent the hole saw from skidding on the material surface, the compatible hole-saw arbor with its retracting guide pin can be used to anchor the 2" hole-saw cup and provide stability.

Designed for long service life, these USA-made steel bits have sintered-diamond cutting edges that cut clean, accurately sized holes in most hard-surface materials such as ceramic, porcelain, marble and glass.

In our testing, we found the drills quickly and easily bored dozens of holes through granite and porcelain tile without abrasive loss or diminished drilling speed. Although these bits performed well when dry, all diamond drills work best with water lubrication.

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