Ridgid 52940 Model M89 3 1/2" Bi-Metal Hole Saw

About the Ridgid 52940 Model M89 3 1/2" Bi-Metal Hole Saw

Ridgid 52940 Model M89 3 1/2" Bi-Metal Variable Pitch Hole Saw Outperform and Outlast traditional standard pitch models. Bi-metal construction With Teeth made from pecially hardened type M3 High speed Steel. The varying Teeth height and gullet Sizes result in much faster cutting and longer life. For wood; mildtool and stainless Steels; cast iron; Brass and aluminum. Features: Depth of cut: 1 1/8" (28 mm). Use Ridgid Thread Cutting Oil on all metal except cast iron. 3 1/2" Saw Size & Hole Diameter