The Bien-Air CA ENDO 4:1 and CA ENDO 8:1 Endodontic Attachments are Swiss-engineered contra-angle handpieces designed for accurate, controlled, and reliable endodontic treatment. Built for use with electric micromotors, these reduction attachments provide smooth torque transmission and precise speed control for root canal preparation, shaping, and NiTi rotary instrumentation. Available in 4:1 and 8:1 reduction ratios, the CA ENDO series allows clinicians to select the ideal speed and torque configuration for their preferred endodontic workflow. The reduction gearing helps deliver controlled file movement, improved tactile feedback, and consistent performance during canal shaping and preparation. Engineered for durability and comfort, these attachments feature smooth, low-vibration operation, ergonomic handling, and reliable bur/file retention for dependable daily clinical use. Their compact contra-angle design improves access to posterior regions while helping maintain precision during delicate endodontic procedures. Compatible with standard E-Type (ISO 3964) micromotors, the Bien-Air CA ENDO 4:1 and 8:1 attachments integrate easily into modern dental operatories. Fully sterilizable and manufactured to Bien-Air’s Swiss quality standards, they provide the reliability, precision, and longevity expected from premium endodontic instruments. Available Variants CA ENDO 4:1 CA ENDO 8:1 Key Features & Benefits Designed for professional endodontic procedures Available in 4:1 and 8:1 reduction ratios Precise speed reduction and torque control Smooth, low-vibration operation Excellent tactile feedback during canal preparation Compatible with NiTi rotary endodontic files Compact contra-angle design for improved access E-Type / ISO 3964 micromotor compatibility Durable Swiss-engineered construction Fully autoclavable for infection control Ideal for root canal shaping, preparation, and retreatment Applications Root Canal Treatment Canal Shaping & Preparation NiTi Rotary Instrumentation Endodontic Retreatment General Endodontic Procedures Technical Highlights Product Type: Endodontic Contra-Angle Attachment Ratios: 4:1 and 8:1 Reduction Connection: E-Type / ISO 3964 Compatibility: Electric Micromotors Application: Endodontics / Root Canal Therapy Sterilization: Steam Autoclave Compatible Manufacturer: Bien-Air Dental Country of Origin: Switzerland