3M 7000119480 Flap Disc 577F 40 Grit 4.5 Inch Type 29

Product Description

The 3M 7000119480 is the 577F alumina zirconia flap disc, a coated abrasive tool designed for high-pressure metalworking on steel, stainless steel, and other metals. Built on a Type 29 angled profile, it runs at up to 13,300 rpm and combines grinding and blending into a single pass. The disc uses fast-cutting alumina zirconia mineral with a grinding aid bonded to heavyweight polyester-backed flaps, delivering more cutting power and longer service life than standard aluminum oxide discs at 40 grit. Typical applications include weld removal, beveling, and sharp-edge work.

This flap disc fits 4.5 inch angle grinders and is sized for demanding fabrication and field metalworking tasks. The 40 grit rating makes it well suited for aggressive stock removal while still leaving a blended surface finish in one step, eliminating the need for a separate finishing pass. It is used in structural steel fabrication, pipe welding preparation, and general metal conditioning work in industrial and field settings. Licensed tradespeople and fabricators working in manufacturing, construction, and maintenance environments regularly specify this disc for heavy-duty grinding tasks.

Key Features

• Alumina zirconia mineral with grinding aid cuts faster than aluminum oxide on all metal types
• Type 29 angled disc profile increases surface contact for aggressive grinding and beveling
• Heavyweight polyester-backed flaps extend disc life under high-pressure conditions
• Combines grinding and blending in a single step, reducing labor time
• Rated to 13,300 rpm for use on standard 4.5 inch angle grinders
• 40 grit for aggressive stock removal including weld removal and sharp-edge work

Compatibility

Designed for use on 4.5 inch angle grinders rated at or above 13,300 rpm. Compatible with standard metalworking applications including weld removal, beveling, and surface blending on steel and other metals.

Installation Notes

Mounting and disc changes should be performed with the grinder unplugged or the power source locked out. Verify that the grinder spindle speed meets or exceeds the 13,300 rpm rating of the disc before use. Wear appropriate PPE including face shield, gloves, and hearing protection during operation. Follow applicable ANSI B7.1 wheel safety standards for abrasive disc mounting and use.

Technical Specifications

• Disc Diameter: 4.5 inches
• Grit: 40
• Disc Type: Type 29 (Flap)
• Max Speed: 13,300 rpm
• Abrasive Mineral: Alumina Zirconia
• Backing Material: Heavyweight Polyester
• Weight: 0.32 pounds
• Package Length: 8.4 inches
• Package Width: 5.2 inches
• Package Height: 5.6 inches
• UPC: 00051141310046

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000119480