Supersized grinding aid, cool, noticeably fast cut rate
Durable fibreglass back, quick stock removal and long life
Type 27 flat face: Fine finishing primarily on flat surfaces; flat design and used primarily on flat surfaces
Type 29 conical shape: Maximum contact with work piece without loading; conical flap discs have flaps angled at 10 degrees and may be used on both conical and flat surfaces; the angle provides greater surface contact and as a result, tends to be the most aggressive choice