Stay sharp with Sterling snap-off blades. Just a quick snap of the blade end and you're ready to go with a new sharpened end. From old to new in a split second! LB-50H and LB-50H are standard thickness blades GB-10H and GB-50H 0.6mm thick for cutting thick materials 8 point, 18mm wide H/D blades are safer and more rigid than normal snap blades Suits most 18mm Large Snap Cutters Made in Japan