3M 7000121893 Convolute Deburring Wheel 6 Inch

Product Description

The 3M 7000121893 is a convolute deburring wheel designed for medium to heavy precision deburring, blending, and polishing of machined and fabricated parts. The wheel bonds an open, nonwoven web loaded with silicon carbide abrasive grain and resin to a rigid fiberglass core. That construction produces a wheel that is strong, dense, and conformable enough to follow part geometry without gouging. It measures 6.38 inches in diameter and 3.69 inches wide, and weighs 2.85 pounds. Machinists, tool-and-die technicians, and metal fabricators reach for this wheel when a job demands consistent, controlled material removal on close-tolerance components.

This wheel is suited for medium to heavy deburring on parts that require tight dimensional control. Typical applications include removing aluminum die cast flashing, cleaning up milled steel edges, and blending weld seams on fabricated assemblies. The open web construction resists loading, which extends service life when working with soft or gummy metals. The silicon carbide mineral provides sharp cutting action and leaves smooth, refined surface finishes compared to aluminum oxide alternatives.

Key Features

• Silicon carbide abrasive grain delivers sharp cutting action and smooth final finish
• Open nonwoven web resists loading and prolongs abrasive service life
• Medium-to-hard density stands up to part edges during aggressive deburring passes
• Conformable construction follows part geometry to reduce risk of gouging
• Fiberglass core provides structural rigidity under sustained load
• Effective on aluminum die cast flashing and other close-tolerance workpieces

Compatibility

Designed as a convolute deburring wheel for use on bench grinders, pedestal grinders, and automated deburring machines that accept 6-inch diameter wheels with a compatible arbor bore size.

Installation Notes

Installation should be performed by a qualified operator familiar with abrasive wheel safety standards, including ANSI B11 and applicable OSHA regulations. Power down and lock out the machine before mounting or dismounting the wheel. Inspect the wheel for cracks or damage before each use and verify that the machine spindle speed does not exceed the wheel's rated maximum RPM. Always use the appropriate flanges and hardware specified for convolute wheel mounting.

Technical Specifications

• Wheel Diameter: 6.38 inches
• Wheel Width: 3.69 inches
• Weight: 2.85 pounds
• Abrasive Mineral: Silicon Carbide
• Wheel Type: Convolute
• Core Material: Fiberglass
• Unit of Measure: Each
• UPC: 051115332178

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000121893