The MST 8.50mm Disposable Punch (Item #AB-60850) is a purpose-built ophthalmic instrument in the Trephines & Punches portfolio. Designed around its specific working geometry, it features 8.50mm diameter. Our sterile, single-use vacuum donor punches have an ultra-sharp cutting blade for making precision cuts of the donor tissue for corneal transplants. The punches feature four guide posts that ensure proper alignment. Sold individually. 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.