3M 7100109142 Trizact Hookit 337DC Abrasive Disc 5 Inch

Product Description

The 3M 7100109142 is a Trizact Hookit 337DC cloth-backed abrasive disc designed for fast scratch removal on automotive metal components and white metal surfaces. Built on an X-weight cloth backing with a macroreplicated aluminum oxide grain structure, this 5-inch disc runs at up to 12000 RPM. The microreplicated abrasive geometry — often described as a brick-and-channel pattern — reduces loading and controls abrasive breakdown, delivering a consistent, predictable finish across multiple substrates. Licensed HVAC and metal-finishing technicians working automotive refinishing or fabrication applications will find this disc suitable for productivity-focused material removal and finish work.

This disc is intended for use in automotive refinishing, metal fabrication, and surface preparation environments where scratch removal and finish consistency are critical. The Hookit hook-and-loop attachment system allows rapid disc changes without tools, making it well-suited for production-rate shop environments. The disc generates minimal heat during use, which helps protect heat-sensitive substrates and coatings. It is sold individually.

Key Features

• Macroreplicated aluminum oxide grain on X-weight cloth backing for long life and consistent cut
• Microreplicated brick-and-channel abrasive structure reduces loading during use
• Controlled abrasive breakdown delivers predictable finish results
• Generates minimal heat, making it suitable for multiple substrate types
• Hookit hook-and-loop backing allows fast disc swaps without additional tools
• Rated to 12000 RPM for use with standard 5-inch random orbital and disc sanders

Compatibility

Designed for use with 5-inch Hookit-compatible hook-and-loop disc sanders and grinders rated to a minimum of 12000 RPM. Suitable for automotive white metal, metal fabrication, and multi-substrate surface preparation applications.

Installation Notes

Verify that the backing pad and tool are rated to at least 12000 RPM before mounting this disc. Inspect the Hookit backing for debris or wear prior to attachment to ensure secure seating during operation. Always wear appropriate eye and respiratory protection when operating abrasive discs. Follow shop safety procedures and applicable OSHA guidelines for abrasive tool use.

Technical Specifications

• Abrasive Material: Aluminum Oxide
• Disc Diameter: 5 inches
• Maximum Speed: 12000 RPM
• Backing Type: X-weight Cloth
• Attachment Type: Hookit Hook-and-Loop
• Package Length: 6.5 inches
• Package Width: 6.5 inches
• Package Height: 5.3 inches
• Weight: 2.133 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100109142