China 12.5" Drilling Tools Cutter Head Railway Highway Bridge Carbide Teeth Hard Rock Drilling Pile Foundation Construction, Find details about China Tbm Cutter, Pipe Jacking Cutters from 12.5" Drilling Tools Cutter Head Railway Highway Bridge Carbide Teeth Hard Rock Drilling Pile Foundation Construction
12.5" | 14.5" | |||||||
622 | 612 | 522 | 512 | 622 | 612 | 522 | 512 | |
Maximum diameter (mm) | 318 | 370 | ||||||
Rows of alloy teeth | 6 | 5 | 6 | 5 | ||||
Taper | 20° | 20° |