Lot of 20 3M sanding belts. These are being removed from a big box of belts as shown in the photos.
Made in the USA by 3M
50 grit
3M series: 777F
Mix of ceramic and aluminum oxide abrasives.
Durable polyestor cloth backing.
A 3M ceramic grain abrasive belt constructed on a YF-weight, water resistant polyester cloth backing.
Resin bonded for heat resistance.
Can be run wet or dry.
Features grinding aid which enhances performance on stainless steel and other exotic alloys.
Recommended in offhand and pressure grinding on all exotic metal alloys.