Starrett Diamond Grit Hole Saw - Ideal for Drilling Small Diameter Holes - 2-1/4" Diameter, 1-5/8" Cutting Depth, 5/8-18 Thread Size, XA2/XA10 Arbor Type, Silver - ?KD0214-N

Starrett Diamond Edge Holesaws have a uniform coating of synthetic diamond grit bonded to a durable steel platform that provides exceptional performance and effective cutting action on non-metallics and other difficult to cut materials. Diamond edge saws produce clean, accurate cuts and offer extended life well beyond that of conventional tools. Coolant should be used, especially when cutting metals and fired ceramics. Always start with low or recommended speed. Speed can be increased as ease of cutting is noticed. Avoid extreme heat build-up on the cutting surface.