3M 7100138166 Ceramic Spiral Band 80 Grit 1x1 Inch

Product Description

The 3M 7100138166 is a ceramic abrasive spiral band designed for aggressive material removal on drum sanders and spindle sanding applications. Built on a heavy-duty X-weight cloth backing, this band delivers consistent cut rates and durability under high-speed use, rated to 18000 RPM. At 80 grit, it falls in the medium grade range, making it well-suited for shaping, blending, and stock removal on wood, metal, and composite materials. The ceramic grain self-sharpens as it cuts, extending usable life compared to aluminum oxide alternatives. This product is sold individually and is intended for professional fabrication, woodworking, and metalworking environments.

This spiral band is a standard fit for drum sanding mandrels and oscillating spindle sanders used in production shops, cabinet shops, and metal fabrication facilities. At 1 inch in diameter and 1 inch wide, it fits common small-diameter sanding drums. The medium-grit designation makes it a go-to choice for initial surface preparation and weld blending before moving to finer finishing stages. Woodworkers, metal fabricators, and general production technicians are the typical end users. The X-weight cloth backing resists tearing during extended use at elevated speeds.

Key Features

• Ceramic abrasive grain self-sharpens for extended cut life
• X-weight cloth backing provides durability and tear resistance at high RPM
• Rated to 18000 RPM for use in high-speed drum sanding applications
• 80 grit medium grade for aggressive stock removal and surface blending
• 1 inch diameter by 1 inch wide fits standard small-drum sanding mandrels
• Coated abrasive construction for consistent grain distribution across the band surface

Compatibility

Designed as an OEM-style replacement spiral band for standard drum sanding mandrels and oscillating spindle sander drums accepting 1 inch diameter by 1 inch wide sanding sleeves.

Installation Notes

A licensed or trained shop technician should confirm the mandrel drum diameter matches the band's 1 inch inside diameter before installation to ensure a secure, vibration-free fit. Power down and disconnect the sander from its power source before changing bands. Do not exceed the 18000 RPM rating; verify the tool's no-load RPM against the band rating before operation. Inspect the band for tears or glazing before each use and replace if the abrasive surface is worn through to the backing.