Value Collection CR-4 Cartridge Roll Mandrel

Product Description

The VALUE COLLECTION CR-4 is a quick-change cartridge roll mandrel designed to hold cartridge rolls for deburring, blending, and finishing operations on metal and other materials. The pilot diameter measures 0.125 inches and the pilot length is 0.75 inches, providing a secure grip on standard cartridge rolls. The shank diameter is 0.125 inches with a shank length of 1 inch, and the overall length (OAL) is 2.75 inches. This mandrel is installed in die grinders, rotary tools, or drill presses and is typically used by machinists, fabricators, and maintenance technicians working on surface finishing tasks.

The CR-4 mandrel is suited for use in metal fabrication shops, maintenance and repair environments, and production finishing applications. It accepts standard cartridge rolls for use on ports, bores, contoured surfaces, and hard-to-reach areas. The quick-change design allows rolls to be swapped without tools, reducing downtime during finishing operations.

Key Features

• Quick-change design allows fast cartridge roll swaps without additional tools
• Pilot diameter of 0.125 inches fits standard cartridge roll bores
• Pilot length of 0.75 inches provides stable roll engagement
• Shank diameter of 0.125 inches fits 1/8-inch collets and compatible rotary tool chucks
• Compact overall length of 2.75 inches for access in confined workspaces
• Lightweight at 0.08 pounds for reduced operator fatigue during extended use

Compatibility

Designed for use with standard cartridge rolls having a matching pilot bore diameter; compatible with die grinders, rotary tools, and drill presses equipped with a 1/8-inch collet or chuck.

Installation Notes

Installation is performed by machinists or maintenance technicians using a compatible rotary tool or die grinder. Before mounting or changing cartridge rolls, power off and disconnect the tool from its power source. Ensure the shank is fully seated in the collet and the collet nut is properly tightened before operation. Follow the tool and abrasive manufacturer guidelines for maximum RPM to avoid roll or mandrel failure.