• Two head sizes for individual needs • Optimum service life and quiet operation due to ceramic ball bearings and innovative gearing technology (WK-99 / WK-93) • Easy to clean, comprehensive protection and long-term value retention thanks to new surface coating • Excellent grip and ergonomics with optimised shank profile and monobloc design • Compact glass rod for outstanding illumination of the treatment site • Durable instrument construction with stainless-steel external parts • Easy change of instruments • Integrated maintenance-free spray filter for top water quality • Thermo washer disinfectable and sterilizable • 36 months warranty Straight handpiece 1:1, Single Spray, twist tension chuck system for handpiece and contra-angle bur Ø 2.35 mm, compact glass rod TECHNICAL DATA Light: Compact glass rod Transmission/Reduction: 1:1 Max. Speed: 40,000 rpm Max. Operating Part Diameter: 34 mm Coupling: ISO 3964 Spray: 1-fold (> 50ml/min) Intensity of Illumination: 25,000 Lux