Grizzly Paw Increases Blasthole Penetration Rates

Atlas Copco's Secoroc Grizzly Paw drill bit finished the year by consistently proving out more than two years' of research and development. Its speed, consistency, and endurance make it the most aggressive bit available for penetrating glacial till and coal overburden. The Grizzly Paw's design not only provides rapid rates of penetration but also eliminates the need to switch bits after encountering hard rock. Atlas Copco engineers used sophisticated software and programmable logic controls to adjust the angle of the teeth and placement of air holes, perfecting the current design. The resulting Grizzly Paw is the product of nine generations of research and development over a two-year period. Bits are available in a range of diameters from 9 to 12-1/4 inches. All sizes feature a one-piece 4140 alloy steel bit body to ensure maximum blade and body strength. Tungsten carbide- enhanced hard-facing protects bit bodies and minimizes reduction in hole size.

As featured in Womp 2011 Vol 03 -