1.Cortical Penetration & Site Marking:
Breaks through the hard outer cortical bone layer to establish a precise entry point, preventing drill slippage.
2.Trajectory Guidance:
Creates a stable initial channel to ensure subsequent drills follow the correct angulation and depth, eliminating deviation.
3.Minimizes Bone Trauma:
Small diameter and sharp lance tip reduce friction, heat generation, and bone damage during initial drilling.