High quality corebit extensions for 5/8”-11th thread core-bits.
- Made with high quality steel
- Designed for professional construction
- Tested on job sites across North America
- works on Husqvarna, Hiliti, Milwakee, bits
- rust protection black paint coating
Protech Diamond Tools Inc is a Canadian manufacturer of premium diamond-tipped blades and core bits—engineered for fast cutting, long life, and consistent performance. Robbi 587-433-8702



