J6 R-8 Quick-Change Drill Chucks

The Royal Quick Change Tool System provides a fast method for changing tools on a Bridgeport-style mill - once the R8 body is installed in a the machine spindle, tools can be changed in seconds.
• On hand operation - simply depress the brass locking button and rotate collar to the locked-open position. When a new tool is inserted, it depresses a spring-loaded pin, snapping the collar back into the locked-closed position
• Very accurate - total system run out is less than 0.0005” TIR
• Short overhang (1-1/8”) and two positive-drive keys enable many common milling and drilling operations to be easily performed.
• Please note that this tool is designed for light/medium-duty applications where the ability to change tools quickly outweighs the need for extreme rigidity. We do not recommend using this system for heavy milling or high production applications.
Common specifications:
• 13/32” gage length