3M 7000045772 Cartridge Roll Mandrel 3/16x1-1/2x1/4 in

Product Description

The 3M 7000045772 is a screw-type cartridge roll mandrel designed to securely hold and drive cartridge rolls during grinding, deburring, and surface finishing operations. The mandrel dimensions are expressed as pilot diameter, pilot length, and shaft diameter: 3/16 inches pilot diameter, 1-1/2 inches pilot length, and 1/4 inches shaft diameter. At 0.04 pounds, this is a compact, lightweight tool accessory suited for use in die grinders and similar rotary tools. Installation and operation require matching the correct cartridge roll bore to the mandrel pilot for a secure fit before threading the roll into place.

This mandrel is used in metal fabrication, maintenance, and finishing applications where cartridge rolls are the abrasive of choice. Typical tasks include weld blending, port work, tube ID finishing, and deburring in tight spaces. It is commonly used by machinists, fabricators, and maintenance technicians working with die grinders or straight grinders in both shop and field settings. The 1/4 inches shaft diameter fits standard die grinder collets found across most brands.

Key Features

• Screw-type drive securely locks cartridge rolls during rotation to prevent slippage
• Pilot diameter of 3/16 inches accommodates matching-bore cartridge rolls
• 1/4 inches shaft diameter fits standard die grinder collets
• 1-1/2 inches pilot length provides adequate engagement depth for roll retention
• Lightweight at 0.04 pounds for reduced operator fatigue during extended use

Compatibility

Designed for use with cartridge rolls having a 3/16 inches bore diameter. Compatible with die grinders and straight grinders accepting a 1/4 inches collet. Consult cartridge roll specifications to confirm bore size before pairing with this mandrel.

Installation Notes

Installation should be performed by a qualified machinist or technician familiar with rotary abrasive tooling. Ensure the grinder is powered off and disconnected from the air supply or electrical source before mounting or removing the mandrel. Thread the cartridge roll fully onto the pilot and secure per the screw-type retention mechanism before operating. Always verify the grinder RPM rating is compatible with the cartridge roll and mandrel assembly before use.

Technical Specifications

• Pilot Diameter: 3/16 inches
• Pilot Length: 1-1/2 inches
• Shaft Diameter: 1/4 inches
• Weight: 0.04 pounds
• Drive Type: Screw type
• Unit of Measure: Each
• UPC: 00051144451180

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000045772