Kevorkian Biopsy Punch, Sklar, 11-1/2 in., 3mm x 8mm Bite, Rectangular Bite with 4 Lower Teeth, Straight, Stainless Steel. Sklar's Kevorkian Biopsy Punch is commonly used during colposcopy procedures to excise tissue from the endocervix for biopsy. This product has a 3mm x 8mm rectangular bite with 4 lower teeth. There is a basket to catch the tissue sample after excision. The non-ratcheted, spring style handle features one large ring that can fit multiple fingers and has a horn on the upper handle for thumb placement. The length of the shaft is 11-1/2 inches.