This hole saw cutter is made of high quality M42 H.S.S high speed steel
Tooth with precision vacuum hardened increases tooth abrasion resistance, roughness, and sharply tool life
Ideal for marble, concrete, brick, porcelain, ceramics, epoxy and woods
DIMENSIONS---Cutting Diameter: 4-1/4 inch(108mm); Hole Saw Depth: 1.7 inch(45mm), , perfect for led panel lights, down lights, housing
7/16?Hex, or 3/8?Hex Shank Arbor Fit For Saws From 4-1/4 inch(108 mm)