3M 7100171772 Flap Wheel 3 in 120 Grit Aluminum Oxide

Product Description

The 3M 7100171772 is a 244D series flap wheel built for general-purpose surface work including grinding, polishing, sanding, and finishing. At 3 inches in diameter and 120 grit, it uses aluminum oxide mineral bonded to an X-weight cotton cloth backing. The flap construction exposes fresh abrasive continuously as each flap wears, allowing the wheel to maintain consistent cut rate while still producing fine surface finishes. The cloth backing resists tearing and holds up against workpiece edges, making it a reliable choice for detail work on contoured or irregular surfaces.

This flap wheel is suited for use on metal, wood, and composite surfaces in fabrication, maintenance, and finishing applications. It is compatible with Type 83 (T83) and Type 84 (T84) mounting systems, making it adaptable to a range of rotary tool setups. Typical applications include weld blending, deburring, edge finishing, and surface prep before coating or inspection. Both shop technicians and field service professionals use this wheel where controlled material removal and surface quality matter.

Key Features

• 120 grit aluminum oxide mineral for sharp cutting and fine finishing in a single wheel
• Flap construction continuously exposes fresh abrasive for consistent performance throughout wheel life
• X-weight cotton cloth backing is durable and malleable, minimizing gouging and marring on finished surfaces
• Compatible with Type 83 (T83) and Type 84 (T84) mounting systems for broad tool compatibility
• Cloth-backed abrasive resists tearing and performs reliably against edges and contours
• General-purpose design supports grinding, polishing, sanding, and finishing in one consumable

Compatibility

Compatible with rotary tools and mandrels using Type 83 (T83) or Type 84 (T84) mounting systems. Designed as a general-purpose coated abrasive flap wheel for use across metal, wood, and composite workpieces.

Installation Notes

Installation should be performed by a qualified operator familiar with rotary abrasive tooling. Verify that the tool RPM rating meets or exceeds the maximum rated speed of the wheel before mounting. Inspect the wheel for damage before each use and ensure the mandrel and mounting hardware are secure. Always wear appropriate PPE including eye protection and gloves when operating abrasive wheels.

Technical Specifications

• Diameter: 3 inches
• Grit: 120
• Abrasive Mineral: Aluminum Oxide
• Backing Material: X-weight Cotton Cloth
• Abrasive Type: Coated
• Mounting Type: Type 83 (T83) and Type 84 (T84)
• Weight: 0.35 pounds
• Package Dimensions: 6 inches L x 5.5 inches W x 6 inches H
• Sold As: Each
• Minimum Order Quantity: 10

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100171772