
1:1 Increasing Contra Angle
A compact 1:1 contra angle for smooth polishing, finishing and general restorative procedures.
View DetailsSpeed-increasing and direct-transmission contra angles for efficient polishing, finishing and restorative procedures.
Increasing contra angles are compact rotary instruments for polishing, finishing and restorative work. This range includes direct 1:1 transmission and speed-increasing 1:5 and 1:4.2 configurations.
Choose the ratio, head angle, cooling, connection and bur requirements according to the procedure. Each product page provides the complete model details and technical specifications.
Compare the three transmission ratios and their compact head designs.

A compact 1:1 contra angle for smooth polishing, finishing and general restorative procedures.
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A 1:5 speed-increasing contra angle for efficient restorative cutting, finishing and polishing.
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An angled 1:4.2 contra angle for high-speed finishing, restorative work and comfortable posterior access.
View DetailsChoose 1:1 for direct transmission, 1:5 for efficient high-speed finishing, or 1:4.2 for increased speed with angled access.
The small head and slim body support comfortable positioning, while the 1:4.2 angled configuration helps reach demanding areas.
Quad-point irrigation supports consistent cooling around the bur during polishing, finishing and restorative procedures.
Match the universal international interface to the compatible motor and confirm the required bur configuration before ordering.
1:1, 1:5 and 1:4.2 configurations cover direct transmission and increased-speed workflows.
Small heads and slim body profiles support visibility, positioning and comfortable handling.
Multiple spray outlets help maintain cooling around the bur during cutting and finishing.
Balanced bearings support smooth rotation and low-vibration operation.
Stainless-steel press-type construction makes bur changes straightforward.
The series supports 135°C high-temperature, high-pressure sterilization.
Confirm the exact model, motor, connection and bur requirements before ordering.
| Product | Model | Ratio | Working pressure | Noise | Irrigation | Interface |
|---|---|---|---|---|---|---|
| 1:1 Increasing Contra Angle | 120099-1 | 1:1 | 0.10–0.15 MPa | ≤63 dB | Quad-point | Universal international |
| 1:5 Increasing Contra Angle | 120010 | 1:5 | 0.20–0.25 MPa | ≤63 dB | Quad-point | Universal international |
| 1:4.2 Increasing Contra Angle | 120166 | 1:4.2 | 0.20–0.25 MPa | ≤63 dB | Quad-point | Universal international |
Direct and increased-speed configurations support controlled polishing and finishing workflows.
Stable cutting and quad-point irrigation support everyday restorative procedures.
1:5 and 1:4.2 ratios provide efficient speed for finishing and restorative cutting.
Three ratios and consistent interface specifications simplify professional product selection.
Increasing contra angles are used for polishing, finishing and restorative procedures that benefit from smooth, efficient rotary speed and compact access.
The range includes 1:1, 1:5 and 1:4.2 configurations. Confirm the exact model and procedure requirements before ordering.
The product specifications list quad-point irrigation to support cooling around the bur.
The products list a universal international interface. Confirm the motor, bur and accessory configuration for the selected model.
The series supports 135°C high-temperature, high-pressure sterilization. Follow the model-specific reprocessing instructions.
Yes. Send the required ratios, models, quantities and destination market to discuss distributor supply.
Tell us your preferred ratio, procedure, motor interface, quantities and distributor or OEM requirements.