TLC High Speed Standard Push Button Q/D Handpiece - 4 Hole TLC High Speed Standard Push Button Q/D Handpiece - 4 Hole this excellent high speed turbine handpiece with QD-J style couplings has been enhanced to meet expectations in modern dental surgeries. Every feature of this excellent handpieces is precision engineered to deliver enhanced performance with the reliability and durability professionals will expect. The cost versus performance ratio puts the TLC series at the highest level within its class. Features: 1. Operating air pressure: 25 to 30 psi 2. 400,000 R.P.M 3. Ceramic Bearings: Quieter and longer life 4. Ultra Push Chuck: Simple bur exchange 5. Single water spray 6. Sterilization by autoclave at (135) Centigrade 7. 4 hole screw-on connector with a 360 deg. swivel quick disconnect 8. Ergo Grip : Secure Grip for your confidence