We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Maroon non-woven fiber disc with 1/4 in unthreaded arbor hole

3M

3M 00666 Arbor Mount Sanding Disc 6 in 1/4 in VF AlO

SKU CH-ERGS-ZJ2KP MPN 00666

Six-inch arbor-mount disc with very-fine aluminum-oxide abrasive for light finishing and surface preparation at up to 4,000 RPM

  • Product typeSanders
  • Very fine grade produces smooth surface finish
  • Aluminum oxide abrasive delivers consistent cutting performance
  • Non-woven fiber backing resists loading during use
  • 1/4 inch unthreaded hole fits standard arbors
  • Maximum operating speed 4 000 RPM for efficient sanding

6 in Arbor Mount Sanding Disc

The 3M 00666 is a non-woven abrasive disc built for surface conditioning on metal, wood or composite materials. Its aluminum oxide grain and open coating resist loading while delivering a consistent very fine finish. The fiber backing and 1/4 in unthreaded hole allow quick mounting on compatible arbor mandrels.

Best for finishing and light deburring

This very fine grade suits operators who need uniform satin results without aggressive stock removal. It is not intended for heavy grinding, rapid material removal or applications that require a coarse or medium grit surface profile.

Fits standard 1/4 in arbor shafts

The disc installs directly on any mandrel or tool with a matching 1/4 in unthreaded arbor, freeing the user from proprietary mounting systems. Maximum rated speed is 4,000 RPM, so the drive tool must not exceed that limit. The open coating and maroon fiber backing reduce heat buildup during extended use.

How it compares

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

Price $2.99
Cheaper than about 93% of the 477 comparable items (median $21.99).

Specifications

Product
Brand name3M
Model name00666
Product typeSanders

Questions about this item

What size arbor hole does the 6 in disc need on my sander?

The disc has a 1/4 in unthreaded hole that fits a matching arbor on your sander.

Will the 4,000 RPM maximum speed work with my older variable-speed sander?

Yes, as long as your sander can be set at or below 4,000 RPM the disc will run within its rated limit.

How can I confirm the non-woven aluminum oxide surface is cutting properly after mounting?

A consistent maroon colour and steady material removal without loading indicate the very-fine grade is performing as designed.

More in Sanders, Rotary & Demolition Tools

Similar items