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Cubitron II Clean Sanding Abrasive Disc

3M 31376 Cubitron II Hookit Clean Sanding Abrasive Disc 8 in, 80, 25 discs per box


  • $80.80


  • Electrostatically oriented triangular-shaped grain cuts 30% faster than other premium abrasives
  • Precision shaped, self-sharpening grains last twice as long vs. conventional industrial abrasives
  • Sharper cutting surface means less pressure is required for reduced friction and wear
  • Clean Sanding multi-hole pattern delivers excellent dust extraction
  • Hookit hook-and-loop style disc attaches firmly, removes quickly for fast disc change-out
We developed our Cubitron II Hookit Clean Sanding Abrasive Disc 737U for superior cut and long disc life during key stages in auto body repair. It features 3M Precision-Shaped Grain technology - triangular-shaped, electrostatically oriented grains form sharp peaks, each acting like an individual cutting tool that slices through paint and body filler. This grain cuts 30% faster than traditional premium abrasives. The disc is ideal for feather-edging, as a final sanding step before priming, or during prep before blending. Individual edges in the shaped grain also self-fracture to continually present a sharp cutting surface, making the cut more consistent and prolonging the life of the disc. About Cubitron II and Precision-Shaped Grain 3M Cubitron II products have raised the bar for high-performing abrasives. Cubitron utilizes 3M Precision-Shaped Grain, which outcuts and outlasts conventional ceramic industrial abrasives and requires less grinding force to achieve superior performance. The result is that operators can grind faster and complete more parts per disc with less muscle-work and fatigue. To create PSG, 3M engineers started with 3M Ceramic Abrasive Grain and used proprietary technology to form the grains into triangular structures and electrostatically orient them on the backing to form sharp peaks that maximize cutting potential. These peaks slice cleanly through metal like a knife through butter, rather than gouging or plowing as traditional abrasives do, and continuously self-sharpen as the points break off. This generates a super-fast cut and lessens heat build-up due to friction, reducing heat-related stress cracks and discoloration. PSG also wears evenly, and because the abrasive itself stays cooler and sharper, Cubitron II products last significantly longer than their conventional ceramic counterparts, ensuring extended high performance in production applications.

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