Used to perform a sclerectomy at the corneoscleral junction (the space between the iris and the cornea's innermost surface) to evacuate the excess aqueous humor from the anterior chamber. A standard spring mechanism contributes for precise control during the procedure. Comes with a set of interchangeable Stainless Steel tips of following diameters: 0.50 mm/ 0.75 mm/ 1.00 mm/1.50 mm. 360° rotatable tip for convenient positioning. A manually operated screw allowing the surgeon to control the punch's position. No need to hold the scleral flap during the surgery.