Use this Bi-metal hole saw from Ridgid to outperform and outlast traditional standard pitch models. Bi-metal construction with teeth made from specially hardened type M3 high speed steel. The varying teeth height and gullet sizes result in much faster cutting and longer life. For wood; mild, tool and stainless steels; cast iron; brass and aluminium. Best in use for wood; mild, tool and stainless steels; cast iron; brass and aluminium.
- Bi-metal construction
- M3 HSS cutting edge
- 3/5 TPI variable pitch
- Positive tooth rake
- Depth of cut: 1-1/8 Inch (28 mm)