Cutting bit holding apparatus
Cutting head for a paved roadway resurfacing apparatus
Cutting roller for a mining machine
Cutting tool bit assembly
Cutting tool having hard tip with lobes
Cutting-bit holding support block shield
Diamond planar cutter
Drum mining head with cutter pattern
Excavating tool cutting insert
Excavating tool cutting insert
Extraction undercut for flanged bits
Flighting and tool holder
Flighting section and tooth holder
Flighting section and tooth holder
Grooved earthworking bit and method of enhancing the life thereo
Keeper spring for connecting mining tool to work tool holder
Longwall cutter drum having reduced production of dust
Milling device for cutting up road surfaces
Mine tool bit with spring loaded button retainer
Mining bit with improved split ring retainer