This last-generation handpiece is the result of our ongoing research and development work. PM 1:1 is designed to withstand the stresses resulting from repeated lateral pressure, while maintaining exceptional precision. You will appreciate the absence of vibration, quiet operation and tried and tested bur locking system. | PM 1:1 external irrigation | Type Straight handpiece | Ratio 1:1 (direct) | Coupling E-type as per ISO 3964 | Locking system Locking ring | Bur dimension Bur shank Ø 2.35 mm | Cleaning / sterilisation Thermal washer / steam autoclave up to 135°C (275°F) | Irrigation Interchangeable sleeves with or without irrigation tube | Warranty 2 to 3  years 1 | Reference PM 1:1 external irrigation 1600052-001