3M 7010363307 Flap Disc 4.5 Inch 80 Grit Type 29

Product Description

The 3M 7010363307 is a Cubitron II 967A flap disc engineered for medium-pressure grinding and surface preparation on flat and contoured workpieces. Built around 3M Precision-Shaped Grain abrasive technology, the disc cuts fast and maintains a consistent cut rate as individual flaps break down to expose fresh mineral. At 4.5 inches in diameter with an 80 grit rating and a Type 29 (right-angle) profile, it is well suited for weld leveling, light deburring, and pre-paint surface prep on mild steel and stainless steel fabrication work. A poly-cotton backing promotes controlled, even wear throughout the life of the disc.

This disc is designed for medium-duty applications where both speed and finish quality matter. It performs well on flat surfaces and can follow contoured profiles without aggressive gouging, making it a practical choice for weld removal and surface conditioning ahead of coating or inspection. Fabricators and metalworkers handling mild steel or stainless steel will find it effective for achieving a clean, consistent surface. The Type 29 conical shape directs more abrasive contact toward the workpiece at typical right-angle grinder working angles, improving stock removal efficiency on flat stock.

Key Features

• 3M Precision-Shaped Grain delivers fast stock removal and extended disc life
• Type 29 right-angle profile optimizes contact angle on flat and slightly contoured surfaces
• 80 grit rating suits weld leveling, light deburring, and pre-paint prep
• Poly-cotton backing provides controlled, even wear at medium unit pressures
• Individual flaps break down progressively to expose fresh abrasive mineral
• Less gouging compared to fiber discs and bonded grinding wheels

Compatibility

Designed as an OEM-style replacement flap disc for use with standard 4.5-inch right-angle grinders accepting Type 29 disc configurations.

Installation Notes

This disc is installed and serviced by metalworkers, fabricators, and maintenance technicians using standard 4.5-inch right-angle grinders. Confirm the grinder arbor size and maximum rated RPM meet or exceed the disc rating before mounting. Inspect the disc for damage before each use and never operate a damaged or delaminated flap disc. Wear appropriate PPE including a face shield, gloves, and hearing protection during operation.