3M 7100300844 Unitized Wheel Type 27 600 Series 4.5 in

Product Description

The 3M 7100300844 is a Type 27 unitized abrasive wheel in the 600 Series, designed for blending, finishing, and light surface prep in metal fabrication and maintenance applications. Built on a non-woven nylon web construction with silicon carbide mineral, it operates at a maximum speed of 10,000 RPM and fits standard 4.5-inch right-angle grinders. The soft-to-medium density construction requires only light pressure, making it well suited for fine finishing, polishing, and removing small burrs or surface imperfections without aggressive material removal. Licensed tradespeople and fabricators working with stainless steel, exotic metals, and composites will find this wheel particularly useful for delivering a clean, bright surface finish.

This wheel is used in metal fabrication shops, maintenance facilities, and light industrial environments where controlled surface finishing is required. The Type 27 raised-hub profile improves access to internal right angles, weld toes, and other hard-to-reach geometry on the workpiece. It is appropriate for use on ferrous and non-ferrous metals, including titanium and composite materials. The wheel runs both clockwise and counterclockwise, which adds versatility on reversible grinders and in confined work areas where tool orientation is constrained.

Key Features

• Type 27 center-hub profile fits 4.5-inch right-angle grinders for access to internal right angles
• Silicon carbide mineral compatible with ferrous metals, non-ferrous metals, titanium, and composites
• Open web construction is load-resistant, extending abrasive service life
• Soft-to-medium density requires light pressure for fine finishing and polishing
• Non-woven nylon strands resist melting or smearing under heat, minimizing surface blemishes
• Runs clockwise and counterclockwise for greater versatility
• Increased edge durability over the 500 Series for improved cut and longer life in lightweight blending applications

Compatibility

Designed as a replacement or standard-supply abrasive for 4.5-inch right-angle grinders used in blending, deburring, and surface finishing on metal and composite workpieces.

Installation Notes

Installation should be performed by a qualified operator following the grinder and wheel manufacturer guidelines. Confirm the grinder spindle speed does not exceed the 10,000 RPM maximum rating of the wheel before mounting. Power down and disconnect the grinder from its power source before changing wheels. Inspect the wheel for visible damage before each use and discard any wheel that shows signs of cracking or deformation.

Technical Specifications

• Series: 600
• Wheel Type: Type 27
• Diameter: 4.5 inches
• Maximum Speed: 10,000 RPM
• Abrasive Mineral: Silicon Carbide
• Construction: Non-Woven Nylon Web
• Density: Soft to Medium
• Weight: 0.312 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 5
• UPC: 00068060661302

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100300844