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Black 3 inch foam disc backup pad with hook-and-loop surface

3M

3M 923 3 in Disc Backup Pad 20000 RPM

SKU CH-JN3Y-PS88S MPN 923

A hook-and-loop disc backup pad rated for 20,000 RPM with a 3 in diameter and dual-lock hook type 170

  • TypeSanders
  • Hook-and-loop mount for fast disc changes
  • 20,000 RPM rating handles high-speed sanding
  • 3 in diameter suits detail work
  • Hard-density foam gives firm backing
  • Dual Lock hook type 170 secures abrasive

Hook-and-Loop Disc Backup Pad

The 3M 923 is a hook-and-loop disc backup pad designed for use with orbital sanders. It accepts abrasive discs that use a hook-and-loop mounting system. The pad is constructed from hard-density foam and measures three inches in diameter. It connects to the tool via a straight quarter-inch shaft.

Intended Use and Limitations

This pad suits operators who need a hard-density backup pad for non-vacuum sanding at speeds up to twenty thousand RPM. It is not for users who require a vacuum-hole configuration for dust extraction. Buyers needing a larger diameter or a different shaft size should look at other options.

Maximum Operating Speed

The single specification that determines suitability is the maximum operating speed of twenty thousand RPM. The tool driving this pad must not exceed that rating. Exceeding it risks pad failure and operator injury.

Highlights

  • Hook-and-loop mount for fast disc changes
  • 20,000 RPM rating handles high-speed sanding
  • 3 in diameter suits detail work
  • Hard-density foam gives firm backing
  • Dual Lock hook type 170 secures abrasive

Specifications

TypeSanders
Brand3M
Model923

Questions about this item

Does the 3M 923 backup pad maintain grip at its 20,000 RPM limit?

The Dual Lock Hook Type 170 system is rated for the pad's maximum operating speed of 20,000 RPM.

How much heat or vibration does the 3M 923 generate during extended sanding?

Hard-density foam construction and a 1/8 in thickness help dissipate heat and dampen vibration during continuous use.

What tool chuck size fits the 3M 923's 1/4 in straight shaft?

Any rotary tool or sander with a 1/4 in collet or chuck will accept the straight shaft directly.

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