Osborn 0004702100 Silicon Carbide Crimped Disc Brush

Product Description

The OSBORN 0004702100 is a 3-inch silicon carbide crimped disc brush rated at 80 grit for medium-grade abrasive work. It features round filaments with a 0.04-inch diameter and a plain hole connector, making it compatible with standard grinder arbors. The brush ships with a 7/8-inch arbor hole and a 3/4-inch shank diameter, with a 1-1/2-inch trim length that controls cut depth and flex. Licensed trades and metalworking professionals reach for this brush when they need consistent, repeatable surface conditioning on hard-to-finish materials. It is rated to a maximum of 4,500 RPM.

This disc brush is suited for surface preparation, deburring, and blending operations on cast aluminum, hardened alloy, and stainless steel. It mounts to bench grinders and angle grinders equipped with compatible arbor hardware. Typical applications include weld seam cleanup, edge radiusing, and scale removal where a rigid wire brush would risk tearing the base material surface. The silicon carbide abrasive filaments cut aggressively enough for scale and oxidation removal while still leaving a consistent finish profile.

Key Features

• 3-inch disc diameter with 1-1/2-inch trim length for controlled abrasive contact
• 80 grit silicon carbide abrasive filaments rated for medium-grade material removal
• Round filaments at 0.04-inch diameter for consistent scratch pattern
• Plain hole connector with 7/8-inch arbor hole fits standard grinder arbors
• 4,500 RPM maximum rated speed for safe grinder use
• Suitable for cast aluminum, hardened alloy, and stainless steel surfaces

Compatibility

Designed for use with grinders accepting a 7/8-inch arbor hole and 3/4-inch shank tooling. Material applications include cast aluminum, hardened alloy, and stainless steel as specified by the manufacturer.

Installation Notes

Installation should be performed by a qualified operator familiar with abrasive accessory mounting procedures. Confirm the grinder spindle speed does not exceed the 4,500 RPM maximum rating of this brush before mounting. Power down and disconnect the grinder from its power source before changing accessories, and ensure the arbor nut is secured with the appropriate wrench before operation. Always wear appropriate PPE including eye and face protection when operating abrasive disc brushes.