China Raise Boring Cutter 14.5" Hard Rock Drilling Machine Railway Highway Bridge Drilling Tools Cutter Head, Find details about China Tbm Cutter, Pipe Jacking Cutters from Raise Boring Cutter 14.5" Hard Rock Drilling Machine Railway Highway Bridge Drilling Tools Cutter Head
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° |