Bosch delta sandpaper hook amp loop perforated 93mm for wood bosch 2607017109 the 93mm delta sanding sheets from bosch offer a range of grits from 60 to 240 and pack sizes of 1 5 and 25 the sheets are perforated for dust extraction and use a hook and loop system bosch 2607017109 delta sandpaper hook amp loop perforated 180 grit 93mm wood 25pk