Block & Tooling Systems

• Easy insert removal - unscrew holder with standard tools, no hydraulic presses or special tools required
• Interchangeable inserts provide unmatched versatility allowing for the use of multiple size shank bits for different mining applications
• Continuous Wrap Design - Keystone's patented block to block welding technology insures superior strength in the most extreme mining environments
• Keystone's patented threaded system provides more clamping force than industry standard taper systems creating a system that is stronger and lasts longer