Holds up to 100 times longer than standard sandpaper. Tight spaces in decks, shutters, or old stairs are difficult to sand by hand. Often, you also end up with a splinter in your fingers. With the Expert Sanding Finger, this type of sanding is incredibly easy: the thin, pointed blade fits into the narrowest spaces and sands quickly and effectively thanks to the high-quality carbide grain. The Expert Sanding Finger is not only a great problem solver for carpenters, painters, and renovators, but it also offers exceptional durability. The grain is supported by Bosch Carbide Technology: carbide that remains sharp and effective. Bosch Expert Sanding Fingers provide significant time savings for anyone needing to sand in tight spaces. The coarse, open grains of the RT4 (grit 40) remove material like paint with minimal clogging. The finer RT10 (grit 100) is ideal for sanding and preparing clean wooden surfaces. Starlock attachment for maximum power transfer and convenient blade changes in just 3 seconds. Material: Carbide-RIFF, working width: 32 mm, working depth: 50 mm.