Value Collection CR-8 Cartridge Roll Mandrel Quick Change

Product Description

The VALUE COLLECTION CR-8 is a cartridge roll mandrel designed to hold and drive cartridge rolls during grinding, deburring, and surface finishing operations. The mandrel features a 0.125 inch pilot diameter with a 0.75 inch pilot length, paired with a 0.25 inch shank diameter and a 1 inch shank length. The quick-change design allows for fast cartridge roll swaps without removing the mandrel from the tool, improving efficiency on the shop floor or in the field. Machinists, fabricators, and maintenance technicians use this type of mandrel with rotary tools, die grinders, or drill presses for material removal and finishing work on metal, plastic, and composite surfaces.

This mandrel is suited for use in light industrial, manufacturing, and maintenance environments where cartridge rolls are used to access tight contours, internal radii, and recessed surfaces. The quick-change configuration makes it well-suited for operations that require frequent abrasive media changes across multiple materials or surface conditions. It is typically used by tool and die technicians, welders, and metal fabricators performing finishing work on weldments, castings, and machined components.

Key Features

• 0.125 inch pilot diameter sized for standard small-bore cartridge rolls
• 0.75 inch pilot length provides stable abrasive support during operation
• 0.25 inch shank diameter fits common die grinder and rotary tool collets
• 1 inch shank length for secure tool chuck engagement
• Quick-change design reduces downtime during cartridge roll replacement

Compatibility

Designed as a standard replacement cartridge roll mandrel for use with 0.125 inch bore cartridge rolls in die grinders and rotary tools accepting a 0.25 inch collet or chuck.

Installation Notes

Installation is performed by machinists or maintenance technicians using standard collet wrenches. Always ensure the die grinder or rotary tool is powered off and disconnected from its air or electrical supply before installing or changing the mandrel. Verify the shank diameter matches the tool collet rating before operation, and confirm the cartridge roll is fully seated on the pilot before running the tool. Follow applicable ANSI abrasive safety standards when selecting operating speeds.