Specification
how to specify a grinding wheel
wheel's shape and size(1)
wheel's shape and size(2)

Grinding wheel's Information
using guideline by IAPA

SPECIFICATION
Abrasive Grit size Grade Structure Bond Type Sharp Face Size
A- Regular 12 46 180 G Soft 3 V- Vitrified 1 A   N Please Specify
Oxide 20 80 320 I   5 M- Magnisite 3 C      
Aluminium 16 60 240 H 4 B- Resinoid 2 B P
WA- White 24 100 J 6 5 D D
Aluminium 30 120 K   7 M- Magnisite 6 E     T
Oxide 36 50 L   8 7 F     H
SA- Single     M   9 10 G     E
Crystal N   10 11 H     F
Aluminium O   11 14 I     G
Oxide P   12 21 J     W
PA- Pink Q     23 K      
Aluminium R     L      
Oxide S     M      
C- Regular T Hard   SQ      
Cilicon   SG 1 2 3  
Carbide   M  
GC- Green   A B G  
Silicon   B E  
Carbide   C F