3M™ Cubitron™ II Hookit™ Disc 950U, 150+ F-weight, 6 in, No Hole, Die 600Z, 50/Carton, 250 ea/Case

The 3M Cubitron II Hookit Disc 950U incorporates 3M's advanced Precision-Shaped Grain technology, which represents a significant innovation in abrasive disc design. This engineered grain structure is specifically formulated to progressively fracture during use, consistently exposing fresh, sharp cutting surfaces throughout the disc's operational lifespan. This continuous regeneration of cutting edges enables the disc to maintain an exceptionally elevated cut-rate from initial use through the end of its service life. Additionally, the carefully designed grain structure helps minimize substrate heating during operation, which is particularly beneficial when working with heat-sensitive materials. The grains are distributed across the disc surface in an open-coat configuration, which effectively reduces the accumulation of abraded material on the disc surface—a phenomenon known as loading. This design feature proves especially advantageous when sanding aluminum and other materials prone to clogging traditional abrasive surfaces.

The 3M Cubitron II Hookit Disc 950U achieves an optimal balance between aggressive material removal and surface finish quality through meticulous engineering across multiple components. From the precision-shaped grain formulation to the specialized backup disc pad attachment system, every element of this disc has been designed to deliver a sharp, forceful cutting action capable of producing consistently smooth and uniform surface finishes. This combination of attributes makes the disc particularly well-suited for demanding applications such as panel sanding and frame sanding, where both efficiency and finish quality are critical requirements.

This disc is part of 3M's comprehensive selection of hook-and-loop attachment style Hookit discs, specifically designed for work environments where traditional adhesive-backed discs may be compromised by dust accumulation, dirt contamination, or airborne debris interference. The Hookit system allows sanding discs to be securely fastened to a compatible hook-and-loop backup pad (available for separate purchase) mounted on a random orbital sander. A key advantage of this attachment method is the ability to quickly detach discs, clean them thoroughly, and reuse them multiple times until the abrasive material is completely depleted, maximizing value and reducing waste.