Vega T125F08A Impactech Slotted 8F-10R Insert Bits feature a patented spiral torsion zone that absorbs impact resulting in longer tool life. Vega T125F08A Impactech Slotted 8F-10R Insert Bits precision engineered tips are manufactured with a proprietary CNC machining process and are made from S2 Modified impact resistant steel. Vega T125F08A Impactech Slotted 8F-10R Insert Bits are tested to outperform all leading brands in life cycle and tip failure testing.