Description
Goodson .312″ x .500″ Cobalt Core-Drill/Reamers CDR-312-CB
- Pilot Size: .312″
- OD: .500″
- Save time by drilling and reaming in a single pass
- These top quality cobalt core drill/reamers have a 1/2″ round shank
- For best results, limit speed to 175 RPM
- Steam Oxide coating for chip lubricity








