The MST Beaver Chuck Knife, #3 Handle (Item #AH2515) is a purpose-built ophthalmic instrument in the Knife Handles portfolio. Collet tip, compatible with 50, 60, and 70 series blades. Round handle. Overall length: 102mm. This combination of thoughtful design details and clearly defined specifications helps surgeons quickly identify the configuration that best fits their preferred technique and procedural needs.