Rockmore’s bits, extension rods, couplings and shank adapters are used throughout the world for top-hammer production drilling in mining, tunnelling, construction and quarry work. Our extension drilling tools are designed to transmit the maximum impact energy to the rock with the least possible loss of energy in the drill string.

Rockmore offers a complete selection of extension drilling tools to meet all of your drilling needs, including button, cross and x-design bits, couplings, coupling adapters, shank rods, bit adapters, and thread adapters in a full range of standard diameters. We also offer a complete range of extension rods including male-male and male-female configurations, round and hex cross-section shapes, various lengths and different heat treatment options.