Silicon Carbide 'C'. A free cutting abrasive
grit generally recommended for mild steel, cast iron, Bronze and Brass.
In finer"400 to 600" the most satisfactory for high surface
finish and super finishing.
Aluminium Oxide "MA" type. An
alternative abrasive to silicon carbide with longer life but slightly
slower in operation.
Bauxilite WA-AA". A
special purified type of aluminium oxide having a cool cutting
action. Particularly useful on hard materials.
Graphite Impregnated Stone. In
180, 320 and 500 grit size. A super fine finishing grit which will
produce a high surface finish on all metals. The 180 and 320 grit
sizes can also be used for stock removal on 'pick up' prone materials.
Sulphur Treated "ST". For
'pick up' prone materials i.e. Stainless steels, etc. Add 'ST'
after hardness letters.