Atlas Copco's new range of Secoroc Uppercut tapered equipment is built to handle the pressure round after round. The tapered rods feature a formidable steel grade and specialized manufacturing technique. The heat treatment process helps to release the internal stresses of the steel, giving it greater bending resistance, while retaining high durability. The result is a tapered rod that's better suited to the stress and strains of 7- to 10-kW rock drills. The Secoroc Uppercut bit range comprises button and cross-type bits in an extensive selection of design configurations. There are two new models -- with an extra front button for improved hole straightness, higher penetration rate and longer service life. Atlas Copco