This heavy-duty 6.0 mm/10.0 mm stepped cannulated drill bit features an extended 435 mm length, engineered from high-rigidity surgical steel with a hollow core for high-accuracy bone tunnel tracking over standard guide wires. The specialized stepped geometry allows for progressive multi-diameter bone sculpting, while the fluted flutes clear debris rapidly to prevent thermal cortical friction variables. Packed completely sterile, it includes a large quick-connect (QC) hub designed for universal surgical driver integration.