3M 7100138166 Cloth Band 747D 80 Grit 1x1 Inch 100-pack

Product Description

The 3M 7100138166 is a cloth abrasive band built for demanding material removal and finishing tasks in trade and industrial environments. The 747D designation identifies a heavy-duty X-weight cloth backing paired with an 80-grit aluminum oxide abrasive, a combination suited for aggressive stock removal on metal, wood, and composite surfaces. Each band measures 1 inch wide by 1 inch long, sized for use on spindle sanders, drum sanders, and similar bench or portable abrasive tools. The case contains 100 bands, making it a working supply quantity appropriate for shop or field use by machinists, pipefitters, HVAC technicians, and general trade contractors who need consistent cut rate across high-volume finishing operations.

These bands are well suited for deburring pipe ends, cleaning weld seams, shaping contoured workpieces, and surface preparation before coating or assembly. The X-weight backing resists tearing under load, which is critical when running at elevated RPM on motorized spindle tools. HVAC and plumbing tradespeople commonly use bands in this size and grit range for cleaning copper fittings, deburring steel pipe ends, and preparing metal surfaces ahead of brazing or mechanical joining. The 80-grit cut is aggressive enough to remove oxidation and light scale without excessive material loss on softer metals.

Key Features

• 80-grit abrasive rating for aggressive stock removal and surface preparation
• X-weight cloth backing provides high tensile strength and tear resistance under load
• 1 inch x 1 inch band size fits standard spindle and drum sanding mandrels
• 747D cloth construction designed for consistent cut rate throughout band life
• 100-band case quantity supports high-volume shop or jobsite use

Compatibility

Designed for use with spindle sanders, drum sanders, and rotary abrasive tools that accept 1 inch x 1 inch abrasive bands. Confirm mandrel size and RPM rating before installation.

Installation Notes

Installation and tool loading should be performed with the tool unplugged or powered down and the spindle fully stopped. Ensure the mandrel diameter matches the band inside diameter for a secure, wobble-free fit before operating. Inspect each band for tears or delamination before use, and replace bands that show signs of glazing or reduced cut rate. Follow the tool manufacturer's maximum RPM specifications to avoid band failure during operation.

Technical Specifications

• Grit: 80
• Backing Weight: X-weight cloth
• Band Width: 1 inch
• Band Length: 1 inch
• Quantity per Case: 100
• Package Weight: 1.31 pounds
• UPC: 00051144807741

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100138166