3M 34440 40 Grit Hookit™ Cubitron™ II Clean Sanding Sheet Roll features precision-shaped ceramic grain that cuts faster and lasts longer than conventional abrasives. The clean sanding technology reduces clogging for consistent performance in heavy material removal and surface preparation.
Key Features
- 40 Grit Extra-Coarse: Excellent for heavy stock removal, weld cleanup, and aggressive surface prep
- Cubitron™ II Precision Grain: Fast cutting action, cooler operation, and longer abrasive life
- Clean Sanding Technology: Minimizes clogging for smoother, more consistent sanding
- 2.75″ x 8.75 yd Roll: Tear-to-length format for custom sizing
- Hookit™ Backing: Secure hook-and-loop system for tool-free sheet changes
Frequently Asked Questions
What makes Cubitron II different from regular sandpaper?
Cubitron II uses precision-shaped ceramic grain that self-sharpens as it wears, cutting up to 2x faster and lasting up to 2x longer than conventional aluminum oxide abrasives. The triangular grain shape slices rather than gouges, generating less heat and friction.
What is clean sanding technology?
Clean sanding technology uses an open coat design and anti-clogging treatment that allows dust and debris to be extracted more efficiently, keeping the abrasive surface cleaner and cutting consistently throughout its life.
How much material is on the roll?
Each roll provides 8.75 yards (26.25 feet) of 2.75-inch wide abrasive.
