Features: - Implantology contra-angle handpiece with push-button. - 20:1, cannot be dismantled, single spray, with hexagon chucking system, for surgical burs and cutters with a contra-angled shank Ø 2.35 mm (shank hardness >50 HRC, >520 HV), Kirschner/Meyer internal bur cooling system, maximum drive speed 50,000 min-1.