Home > R25N 14 self drilling anchor system for mining tunnel slope stabilization

Aug 14, 2020 · since its beginning in 1985, numa has become a major manufacturer of dth hammers and bits for the domestic and international drilling industry. the company designs and builds downhole hammers and bits for drilling vertical and horizontal holes 3½ to 50½ inches (89 to 1,283 millimeters) in diameter. to learn more, visit www.numahammers.

Rockmore t series hammers. rockmore’s t series hammer class is a breakthrough in dth drilling technology for mining, construction, and water-well applications. in addition to its ultra high performance features, the new t series design hammers are “tubeless” as they feature standard shank connections that no longer require plastic parts commonly known as blow tubes or foot …

9/16 to 1-1/4", 118° point, oxide finish, high speed steel reduced shank drill bit set 10 piece, standard point, 6" oal, 1/2" shank diam msc# 02387587 hertel in stock

Yg down the hole drilling is widely used in metallurgy, mining, railway, hydropower construction, and underwater drilling and blasting projects.

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