Vega T125H2064A Impactech Hex 5/16” Insert Bit feature a patented spiral torsion zone that absorbs impact resulting in longer tool life. Vega T125H2064A Impactech Hex 5/16” Insert Bit precision engineered tips are manufactured with a proprietary CNC machining process and are made from S2 Modified impact resistant steel. Vega T125H2064A Impactech Hex 5/16” Insert Bit are tested to outperform all leading brands in life cycle and tip failure testing.