This 5.5 x 100 x 160mm Bionic Pro SDS-plus hammer bit from Heller has rounded cutting edges and an innovative spiral design which provides efficient removal of drilling dust.

• Suitable for masonry, stone, concrete
• Stabilised head geometry for impressive robustness upon reinforcement impacts
• Strengthened carbide geometry with double centering point
• Two-point centering area for optimal power distribution
• Computer calculated Twinmax-3D spiral with changing flute widths
• Optimised head geometry with large carbide tip angle