High performance abrasives in the fast attachment Hookit version. Supplied in the convenient roll size to be cut on any Hookit™ pad. The 3M 245 & 255 Hookit™ Rolls are constructed from aluminium oxide mineral. They are opened coat products and the grit is bonded with resin. The 3M 245 Hookit™ Roll utilizes an E-weight backing paper while the 255 Hookit™ Roll uses a C-weight paper. C-weight backing paper gives good mineral support for longer product life and sustained cutting action. Features enhanced anti-loading coating to extend product working life. Stiff E-weight paper gives a strong backing and long product life. Resin bond resists heat to prevent premature “burning”. 3M™ 245 and 255 sanding rolls are suitable for sanding most materials by hand or machine.