ground lines and ensuring safe foundations, thus ... basic requirements for a blast hole drilling machine ... down to the smallest detail.Eight tunnel boring machines created tunnels for a modern rail network in London. ... Transfer the pull and thrust forces as well as the torque to the drill bit or the reamer during borehole reaming. 6 Chassis. ... A drill bit excavates the soil in a pilot hole subsequently, a …Drilling - machine tools (19) Boring - steels and metals (10) Foundry machines - centrifugal (8) ... Lilin brand, PDC drill bit, diamond core bit, bicenter bit, single cone bit, reamer bit, down hole opener, drag bit, button bit, tricone bits, steel tooth bit, TCI bit, pdc diamond bits, single cone bit, diamond core bit, reamer bit, hole opener ...Our drilling systems for piling can be used in a wide range of applications: ... and is thus also suitable for use with modern high-pressure down-the-hole hammers. ... ISC-FBKR drill bits are specially designed for drilling in rocky ground and penetrating multiple layers of medium-hard rock. The standard working length is 1,000 mm.