Dremel 770B-01 multi-grit band kit
770B-01 groups quarter-inch bands in 60, 120 and 240 grit with matching carriers.
How to choose
Choose it when a project needs multiple grits at the same small working diameter. Compare the list of holders and loose refills if you already own a quarter-inch drum.
Compatibility and limits
Quarter-inch bands in 60, 120 and 240 grit · includes matching carriers
Care
Choose the grit for the surface and the amount of material you need to remove. Dremel’s sanding guide separates shaping, smoothing and finishing stages.
Questions before buying
Would a single refill make more sense if I already have the 430?
The 438 is a choice when you only need 120 grit and already own the quarter-inch carrier. This set adds other grit choices and spare carriers at the same diameter.