Medium flexibility grinder pads suggested for 60+ finer grits. It's unique flexibility and durability make this our best selling pad. This range can be considered for universal use. Made in Great BritainType. 90-UTo suit. 100 mm Mini Grinders.Thread. 3/8 x 24 UNF. Abrasive Disc Size. 100 mm x 16 mm (4in). Machines Fitted:- Atlas Copco.Cp9110/854E (Later models Desoutter 308, 355, 370, Myton). Pin spanner - Green