3M 7010308898 Flap Disc 4.5 in 80 Grit Type 27 13300 Rpm

Product Description

The 3M 7010308898 is a coated abrasive flap disc engineered for high-pressure metalworking. Built on a Type 27 (T27) flat-profile hub, it carries alumina zirconia mineral flaps bonded to heavyweight polyester backing. The alumina zirconia grain cuts faster than standard aluminum oxide across carbon steel, stainless, and other metal types, and it is paired with a grinding aid that extends cool cutting under sustained load. At 4.5 inches in diameter with an 80-grit cut and a 13,300 RPM max speed rating, this disc handles aggressive stock removal while leaving a blended finish in the same pass. Metal fabricators, welders, and pipefitters use it where a two-step grind-then-blend workflow would otherwise be required.

This flap disc is suited to heavy-duty metalworking tasks including weld removal, sharp-edge deburring, and beveling on structural steel, pipe, and plate. The T27 flat-face geometry keeps the disc low-profile against workpiece surfaces, making it effective on flat stock and inside tight weld seams. It is intended for use on angle grinders rated for 4.5-inch accessories at or above 13,300 RPM. Each disc is sold individually.

Key Features

• Alumina zirconia mineral with grinding aid delivers faster cut rates than aluminum oxide on all common metal types
• Combined grinding and blending action completes surface prep in a single disc pass
• Heavyweight polyester-backed flaps resist breakdown under high clamping pressure during sharp-edge work and beveling
• Type 27 flat-profile hub suits flat stock, plate, and flush weld applications
• 13,300 RPM max speed rating compatible with standard 4.5-inch angle grinders

Compatibility

Designed as a direct-fit replacement flap disc for 4.5-inch angle grinders accepting Type 27 discs at a maximum of 13,300 RPM.

Installation Notes

Disc mounting and removal must be performed with the grinder unplugged or the power source locked out per OSHA and tool manufacturer requirements. Verify the grinder guard is properly installed and that the arbor nut is seated and torqued before operation. Inspect the disc for visible damage before each use and do not exceed the rated RPM printed on the disc hub. Metal grinding generates sparks and debris — ensure the work area is clear of flammable materials before use.

Technical Specifications

• Disc Diameter: 4.5 inches
• Grit: 80
• Disc Type: Type 27 (T27)
• Max Speed: 13,300 RPM
• Abrasive Mineral: Alumina Zirconia
• Backing Material: Heavyweight Polyester
• Weight: 0.32 pounds
• Package Length: 8.88 inches
• Package Width: 5.75 inches
• Package Height: 6.13 inches
• Sold As: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010308898