3m 321u 36175 Blue Hookit Disc 150mm 150g Mitutoyo Dust Resistance (IP rating): IP65

Dust Resistance (IP rating): IP65 -Speaker

Vario-Tacho-Constamatic (VTC)-Full Wave Electronics with Thumbwheel: For working at customised speeds to suit the application material and speeds that remain almost constant

and impact-proof

Heavy carbon steel head

3m 321u 36175 Blue Hookit Disc 150mm 150g Mitutoyo Dust Resistance (IP rating): IP65Our 3M Hookit Blue Abrasive Disc 321U delivers best in class performance at every stage of paint prep and body repair. Premium aluminum oxide mineral abrasive is blended with ceramic grain for a full range of automotive sanding applications. Specially designed multi hole pattern reduces loading, extends disc life and aligns with most backup pads. Hookit attachment makes disc changes easy. A best in class abrasive for the entire repair and paint prep