Dia.*th*hole Grit Maxrpm
4*1*5/8 40# 60# 80# 120# 180# 240# 320# 8,600
6*1*1 40# 60# 80# 120# 180# 240# 320# 5,700
6*1-1/2*1 40# 60# 80# 120# 180# 240# 320# 5,700
6*2*1 40# 60# 80# 120# 180# 240# 320# 5,700
6*3*1 40# 60# 80# 120# 180# 240# 320# 5,700
8*1*1 40# 60# 80# 120# 180# 240# 320# 4,300
8*2*1 40# 60# 80# 120# 180# 240# 320# 4,300
10*2*1-3/4 40# 60# 80# 120# 180# 240# 320# 3,400
12*2**1-3/4 40# 60# 80# 120# 180# 240# 320# 2,850

Characteristics:
1, Designed to deliver a consistent finish with a uniform rate of cut,flap sheels wear away,continually exposing fresh abrasive. Comformable to most shape.
2, Ideal for stock removal,deburring,cleaning,blending and finishing
3, Cleaning of weld surfaces
4, Removing machine marks & flaws
5, Finishing stainless steel vessesls
6, Removing die lines.
7, Paint and rust removal