Advantage of JPN's Disc Brush Our brushes are maed with 100% DUPONT TYNEX A filaments. Vast product range – variation in filament material, #80 to# 320 std grits, coarse grits and fine grits, size, and shapes to cater each individual need separately Adaptable to all standard machining centers viz. VMC, HMC, FMC, CNC,planetary heads deburring m/c and Robots & Automation to suit the standard holders.