3M Cubitron II Hookit Clean Sanding Disc 31371, 6 in, 80+ Grit, Pack of 50 – Virtually Dust-Free, Long-Lasting

Overview

The 3M Cubitron II Hookit Clean Sanding Disc 31371 is a high-performance sanding solution built for auto body tasks. Sized at 6 inches and graded at 80+ grit, this disc is designed to remove paint, shape body filler, and provide feather edging along with final prep before priming. Packaged as a bulk set of 50 discs, it pairs a Hookit backing with a multi-hole pattern to support efficient dust management and smoother disc changes during longer sessions.

What sets this disc apart is the Precision Shaped Grain technology, which delivers a faster cut and longer disc life compared with traditional ceramic abrasives. The combination of sharp grains and the multi-hole dust extraction design helps keep the work surface cleaner while you work, enabling steadier control and more consistent results through key repair stages.

Performance at a glance

• FAST CUT: Delivers a 30% faster cut compared with other premium ceramic abrasives, helping you move through prep stages more efficiently.
• LASTS LONGER: Designed to maintain cutting efficiency over more uses, reducing disc changes during extended jobs.
• LESS PRESSURE REQUIRED: Precision Shaped Grains work with less disc pressure for comfortable, controlled sanding.
• EXCELLENT DUST EXTRACTION: A multi-hole pattern supports cleaner surfaces and better dust removal with compatible pads.
• FAST DISC CHANGE-OUTS: Hookit hook-and-loop attachment makes disc changes quick and secure.
• COMPATIBLE SYSTEM: Works with 3M Clean Sanding Disc Pad to simplify disc alignment and switching.

Applications and benefits

Use this disc across stages of auto body repair, including paint removal, shaping body filler, performing fine feather edging, and final prep before priming. It’s also suitable for minor surface structure adjustments on clearcoats and blending areas. Expect a consistent finish and reduced downtime thanks to its durable design and dust-management features.

Keep in mind that while performance can vary with technique and material condition, the disc’s sharpened grain, long life, and dust-control design offer practical possibilities for smoother workflows and steadier results as you prep for priming and beyond.