Grains-Including the most used grits: Grits 1 X 40/60 2 Sanding pads are made with durable aluminum oxide grains open coat and fully resin bonded, quality craftsmanship allows the sand grain to be even, providing fast, long-lasting sanding Connection - Precision engineered two-way belt joint, Diagonal connection eliminates the splice bump, the belt sander belt interface is flat, firm and not easy to break under pressure Application - Fits 610X100 mm24X4 inch belt sander - providing coarse fine sanding, stripping and sanding for wood , aluminum, fiberglass, rubber, plastic, stone and non-ferrous metals etc. More grits - Very comprehensive grain size from coarse to fine 40/60/80/120/150/180/240/320, meet all of your sanding jobs, in addition, individual grit sets from 40 to 400 are also sold in the Sruhrak store Size:100X610mm Sruhrak sanding belts 100x610 mm has been designed to provide you with a cost-effective set of durable, high-performance sanding belts in a range of grits A perfect sanding job obviously requires several grades of sanding belts, from coarse at the end This assortment of sanding belts including 8 types of grits, from 40 to 320, covers all your arts and crafts, woodworking, metal and plastic needs for polishing and buffing Package includes : Grit 40 X 2 pieces Grit 60 X 2 pieces Grit 80 total sanding belt 610mmx100mm Specifications: Sanding belt size: 100X610mm4X24 inch Material: Premium quality open coat aluminum oxide (A/O) grain Backing: strong "X" weight cloth backing Joint: firm construction, sharp joint Application: For general metal and wood working, for pine wood, wooden planks, furniture, wooden planks, hand ware and rattan ware Grit Selection Guide: 40-60 Grit: Sandpaper is quite coarse - Heavy sanding and stripping 80-180 Grit: Sandpaper is quite medium - removing small imperfections 240 - 320 Grit: for a super fine smooth finish becoming very rich