220 silicon carbide grit.
General usage:
Rotary: Use 2-3 tablespoons per pound of rock (stage 2).
Vibratory: Use 1/2 tablespoon per pound of rock (stage 1).
220 silicon carbide grit.
General usage:
Rotary: Use 2-3 tablespoons per pound of rock (stage 2).
Vibratory: Use 1/2 tablespoon per pound of rock (stage 1).