High-Speed Dental Handpiece

1. Speed

• 300,000 – 450,000 RPM

• Operates using compressed air (air-turbine)

2. Bur Type

• Friction grip (FG burs)

• Bur size: 1.6 mm diameter

• Bur length: 19–25 mm

3. Chuck Type

• Push-button (most common)

• or Wrench-type (older models)

4. Spray System

• Single, triple, or quad water spray

• Provides cooling and debris removal

5. Bearings

• Ceramic bearings (preferred – quieter, longer life)

• or Stainless steel bearings

6. Torque

• Approx. 0.08 – 0.25 N·cm

• Lower torque than low-speed handpieces

7. Head Size

• Standard head or mini head

• Head diameter: ~10–12 mm

8. Noise Level

• Around 60–70 dB

• Ceramic bearings reduce noise

9. Connection Type

• 2-hole

• 4-hole (Midwest)

• 6-pin (fiber optic / LED)

10. Lighting

• With LED / fiber-optic light or

• Non-fiber optic

11. Sterilization

• Autoclavable

• Temperature tolerance: up to 135°C

12. Material

• Stainless steel or titanium body

• Lightweight, corrosion-resistant