ROCK MASTER INC

DRILLING EQUIPMENT COMPRISING BITS AND TOOLS, NAMELY DOWN-HOLE HAMMERS AND BITS; FINGER BITS; AUGER BITS; STEP-DESIGN REPLACEABLE BLADE BITS; CHEVRON-DESIGN REPLACEABLE BLADE BITS; VALVELESS HAMMERS; SHOCK ABSORBERS FOR DOWN-HOLE HAMMERS; ROCK BIT SUBS, FLOAT SUBS; AND ACCESSORY PARTS INCLUDING DRIFTS FOR ASSEMBLING SPLIT SPACERS, BUSHINGS FOR ASSEMBLING SPLIT SPACERS, BACKHEAD WRENCHES, BIT WRENCHES, CHUCK WRENCHES AND CONVERSION KITS FOR BITS