Vega T150TT20A Impactech TORX Tamper 20 Power Drive Bit feature a patented spiral torsion zone that absorbs impact resulting in longer tool life. Vega T150TT20A Impactech TORX Tamper 20 Power Drive Bit precision engineered tips are manufactured with a proprietary CNC machining process and are made from S2 Modified impact resistant steel. Vega T150TT20A Impactech TORX Tamper 20 Power Drive Bit are tested to outperform all leading brands in life cycle and tip failure testing.