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Maroon 5-inch hook-and-loop surface conditioning disc

3M

3M 00643 SC-DH Hook/Loop Disc 5 in Medium Maroon

SKU CH-P7YC-NBSZ0 MPN 00643

A 5-inch hook-and-loop surface conditioning disc with medium-grade aluminum oxide abrasive in maroon for load-resistant finishing

  • Product typeSanders
  • Hook-and-loop backing allows quick disc changes
  • Aluminum oxide abrasive handles general surface prep
  • Medium grade balances cut rate with finish quality
  • Maroon colour identifies the medium-grade disc at a glance
  • Non-vacuum design keeps setup simple for hand-held sanders

SC-DH Hook/Loop Disc 5 in Medium Maroon

The 3M 00643 is a surface-conditioning disc built for hook-and-loop sanders. Its non-woven aluminum-oxide construction delivers a medium-grade finish on metal, wood or composite surfaces. Automotive refinishers and general fabricators use it for cleaning, blending and light deburring tasks.

Non-vacuum hook-and-loop interface

The disc mounts directly to a compatible backup pad without vacuum holes, so dust extraction relies on the sander’s own shroud or ambient collection. Load-resistant coating reduces clogging during extended use, but the absence of perforations means fine debris can accumulate on the work surface. Operators should plan for separate extraction or frequent wiping.

Medium-grade aluminum-oxide abrasive

The maroon colour identifies a medium cutting level suited to surface preparation rather than heavy stock removal. Buyers who need aggressive grinding or a fine polishing step will require a different grade or abrasive type. The five-inch diameter fits standard orbital and random-orbit sanders that accept hook-and-loop media.

How it compares

Measured against everything we stock in Sanders, Rotary & Demolition Tools, at today’s prices. Recalculated every night.

Price $3.99
Cheaper than about 90% of the 477 comparable items (median $21.99).

Specifications

Product
Brand name3M
Model name00643
Product typeSanders

Questions about this item

Should I pick the medium maroon disc or a different grade for general surface preparation?

The medium maroon grade suits general cleaning, blending and light deburring on metal, wood or composite surfaces.

How does the 5-inch diameter perform on a random-orbit sander in daily use?

The 5-inch hook-and-loop disc centres quickly on standard 5-inch pads and covers a practical area per pass for panel work.

What does the non-vacuum hook-and-loop interface mean for dust extraction and disc changes?

The disc has no vacuum holes, so dust is not pulled through the pad; hook-and-loop backing still allows fast, tool-free disc swaps.

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