This custom edge prep brush features a 400 grit, 0.020" diameter crimped filament with a 23% diamond load. The hub is comprised of a high performance composite material with a 1.250" arbor hole. It has a 1.250" trim length with a 0.375" face width. This brush has a stiffer filament action allowing for larger edge prep sizes and while maintaining an acceptable surface finish and shorter cycle time to achieve a larger edge prep size.