3M 7100138139 Cloth Band 341D P120 X-weight 3/4x1 Inch

Product Description

The 3M 7100138139 is a closed-coat aluminum oxide cloth band designed for demanding material removal in metalworking and woodworking applications. Built on an X-weight cloth backing, this band delivers the stiffness and durability needed for aggressive grinding and finishing passes on harder materials. The resin bond construction provides heat resistance, helping the abrasive maintain performance through extended use cycles. At 3/4 inch wide and 1 inch in length, it fits compact band filing tools and small drum sanders used by fabricators, machinists, and finish carpenters. The P120 grit designation places it in the fine-to-medium range, suited for stock removal followed by surface refinement in a single abrasive step.

This cloth band is intended for use in light industrial and shop environments where consistent surface finish on metal and wood is required. Its closed-coat construction maximizes abrasive grain coverage, making it effective on ferrous metals, non-ferrous metals, and hardwoods. Typical applications include deburring, edge blending, and contour finishing on small workpieces. The X-weight backing resists tearing under moderate contact pressure, which extends usable life compared to J-weight alternatives in similar grit ranges.

Key Features

• Aluminum oxide abrasive mineral for use on metal and hardwood
• Closed-coat construction for maximum grain coverage and consistent finish
• X-weight cloth backing provides durability and resistance to tearing
• Resin bond system resists heat buildup during extended grinding cycles
• P120 grit for fine-to-medium stock removal and surface refinement
• Compact 3/4 inch x 1 inch size fits small band filing and drum sanding tools

Compatibility

Designed as a replacement-style abrasive band for small band filing machines and drum sanding tools that accept 3/4 inch x 1 inch abrasive bands.

Installation Notes

Installation should be performed by trained shop personnel familiar with abrasive tooling. Ensure the power tool is fully de-energized and unplugged before changing abrasive bands. Confirm the band is seated correctly on the drive drum and tensioned per the tool manufacturer's guidelines before resuming operation. Inspect the band for cracks or delamination prior to each use and replace immediately if damage is found.

Technical Specifications

• Abrasive Mineral: Aluminum Oxide
• Coat Type: Closed Coat
• Backing Weight: X-Weight Cloth
• Bond Type: Resin
• Grit: P120
• Width: 0.75 inches
• Length: 1 inch
• Weight: 0.01 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100138139