CooperSurgical Tischler-Morgan Biopsy Punch (Different Versions) CooperSurgical 64-689 Tischler-Morgan Biopsy Punch, L 21 cm, Bite 7 mm x 3 mm. This item is a substitute for Wallach 907008 and Wallach 907014. CooperSurgical 64-689L Tischler-Morgan Biopsy Punch, L 25 cm, Bite 7 mm x 3 mm. This product is a substitute for Wallach 907054. Our most popular design includes ergonomic contours for maximum control and comfort. The standard bite incorporates a single...