The MST Tri-Square Micrometer (Item #AK5004) is a purpose-built ophthalmic instrument in the Diamond Knives portfolio. Designed around its specific working geometry, it features tri-Square (Triple 90) Blade mounted in an adjustable micrometer handle. Variety of 1.0mm blade styles mounted in an adjustable micrometer handle. Dual footplate for superior control. 100% titanium handle. 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.