3M 1-1/2″ Wide x 60″ OAL, 60 Grit, Ceramic Abrasive Belt Ceramic, Medium, Coated, YF Weighted Cloth Backing, Wet/Dry, Series 777F 7010325874

Mitutoyo 320mm Extension Base Optional Accessory for Depth Gage - 900372 320mm width for up to 300mm Range These optional extension bases can be fitted to depth gauge models up to 0-300 mm range. They cannot be attached to 0-600mm or 0-1000 mm range models