3M 7010308947 Ceramic Flap Disc 60 Grit Type 29 4.5 in

Product Description

The 3M 7010308947 is a Type 29 ceramic flap disc designed for aggressive material removal on steels and stainless steel. Part of the 3M 967A series, it features a high-density ceramic abrasive construction on a poly-cotton cloth backing rated to 13,300 RPM. At 4.5 inches in diameter with a 5/8-11 threaded arbor hole, it mounts directly to standard angle grinders used in fabrication, weld prep, and surface conditioning work. The conical Type 29 profile delivers a higher contact angle than flat Type 27 discs, making it effective for blending and stock removal on flat and contoured surfaces. Licensed trades and metal fabricators rely on this disc for consistent cut rate across the life of the abrasive.

This disc is suited for use on carbon steels and stainless steel in both shop and field environments. Typical applications include weld seam blending, surface rust removal, edge chamfering, and pre-paint surface prep. The medium-grade 60-grit ceramic abrasive provides a balance between cut rate and surface finish, making it a practical choice for fabricators, pipefitters, ironworkers, and maintenance technicians working with ferrous and austenitic alloys.

Key Features

• 60-grit ceramic abrasive delivers fast cut rate and extended disc life compared to aluminum oxide
• Type 29 conical profile increases contact angle for efficient blending on flat and contoured workpieces
• High-density flap construction maximizes abrasive surface area per pass
• Poly-cotton Y-weight backing provides flexibility and durability under load
• 5/8-11 threaded arbor hole fits standard angle grinder spindles without a separate adapter
• Rated to 13,300 RPM for use on 4.5-inch angle grinders at rated speed

Compatibility

Designed for use on steels and stainless steel surfaces. Fits standard 4.5-inch angle grinders equipped with a 5/8-11 threaded spindle.

Installation Notes

Installation and disc changes must be performed with the grinder unplugged or the battery pack removed. Verify the grinder spindle speed does not exceed the 13,300 RPM disc rating before use. Inspect the disc for cracks, tears, or delamination before each use and replace if damage is found. Operators should wear appropriate eye, face, and hand protection in accordance with ANSI B11 and applicable shop safety standards.