Abrasive Type

A = Standard Aluminum Oxide
TA= Treated Aluminum Oxide
C= Silicon Carbide
CA= Silicon Carbide & Aluminum Oxide
SKA= Special Coated Alumina Blend
SKZ= Special Alumina Blend
2Z= Zirconium & Aluminum Oxide
4Z= Premium Zirconium & Aluminum Oxide

Grain Size

12= Coarse
16=
20=
24=
30= Medium
36=
46=
60=
80= Fine
90=
100=
120=
220=

Hardness

Rated from A-Z

A= Softest
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M= Medium
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Z= Hardest

Bond Type

B= Bond Type
B33= Premium Resinoid
RR5= Premium Rubber-Resin

Reinforcement

(NO F=None)

F1= Internal Reinforced
F2= Double Reinforced
F3= Hub Reinforced
F4= Hub & Internal Reinforced
F5= Triple Reinforced
F6= Hub & Double Full Internal Reinforced
F7= Double Full Internal Reinforced
F8= Double Full Outside & Hub Reinforced
F9= Double Full Outside & Hub, plus Center Reinforced

Special MFG. Code

(Optional)

Indicates specific bonds, special side treatments or manufacturing processes.