3M 7100089186 Hookit 401Q 3 Inch 2000 Grit Abrasive Disc

Product Description

The 3M 7100089186 is a Hookit 401Q coated abrasive disc designed for fine finishing work on a wide range of substrates. It uses a silicon carbide mineral bonded to an A-weight waterproof paper backing, enabling use in both wet and dry sanding applications. At 2000 grit, this disc delivers a smooth, refined finish suitable for final-stage surface preparation. It is rated to 15000 rpm and measures 3 inches in diameter. Licensed trades and skilled finishers use this disc when surface quality is the priority, not aggressive stock removal.

This disc is well suited for finishing work on automotive paint, primer, gel coat, metal, and wood surfaces. The waterproof paper backing reduces loading during wet sanding, which extends disc life and maintains a consistent cut rate. The Hookit attachment system allows fast disc swaps on compatible random orbital and DA sanders, making it practical for production finishing environments and detail work alike. It is sold individually and fits standard 3-inch Hookit backup pads.

Key Features

• Silicon carbide mineral provides faster cutting action and a smoother finish compared to aluminum oxide abrasives
• A-weight waterproof paper backing supports both wet and dry sanding applications
• Wet sanding reduces loading on the disc surface, maintaining cut rate and extending service life
• Hookit attachment allows quick, tool-free disc changes on compatible backup pads
• 2000 grit rating suited for final finishing and surface refinement on paint, gel coat, and metal
• 15000 rpm maximum speed compatible with standard pneumatic and electric DA sanders

Compatibility

Designed for use with 3-inch Hookit backup pads on pneumatic and electric random orbital or dual-action sanders capable of accepting hook-and-loop disc attachment systems.

Installation Notes

This disc is installed and removed by hand on a compatible Hookit backup pad — no tools required. Verify the backup pad diameter and rpm rating match or exceed the disc specifications before use. When wet sanding, ensure the sander and any associated electrical equipment are rated for wet-environment operation or use pneumatic tools as appropriate. Inspect the disc for tears or delamination before each use and replace if damaged.

Technical Specifications

• Disc Diameter: 3 inches
• Grit: 2000
• Maximum Speed: 15000 rpm
• Abrasive Mineral: Silicon Carbide
• Backing Type: A-weight waterproof paper
• Attachment System: Hookit (hook-and-loop)
• Application: Wet or dry
• Weight: 1.4 pounds
• Package Dimensions: 8.34 x 7.01 x 3.7 inches
• UPC: 051125871391

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100089186