1:1 Direct Drive Contra Angle Handpiece

1:1 Direct Handpiece

1:1 direct drive contra-angle handpiece series are a type of low-speed dental handpiece attachment where the bur rotates at the same speed as the motor powering it (a 1:1 gear ratio).

1:1 Direct Drive Handpiece Key Features

• Gear Ratio: The 1:1 direct drive means the motor speed directly translates to the bur speed, typically up to 40,000 rpm.
• Connection: These handpieces use a standard ISO E-type connection, making them compatible with most electric or air-driven low-speed micromotors.
• Bur Compatibility: They are primarily designed for use with CA (contra-angle) burs, which have a diameter of 2.35 mm.
• Design: The angled head (contra-angle) improves access and visibility to less accessible areas of the mouth.
• Optics/Irrigation: Feature external water/air spray systems for cooling and visibility.
• Materials: High-end models often feature durable, scratch-resistant materials like titanium with special coatings.
• Maintenance: They are autoclavable (sterilizable) at temperatures up to 135°C (275°F) for hygiene purposes.