CooperSurgical Rotating Biopsy Punch Tips (Different Versions) Versions: CooperSurgical 64-484 - Tischler-Morgan Tip, L 23 cm, Bite 7 mm x 3 mm. This product is a substitute for Wallach 907004. CooperSurgical 64-751 - Tischler Tip Up, L 23 cm, Bite 7 mm x 3 mmCooperSurgical 64-756 - Tischler Tip Down, L 23 cm, Bite 7 mm x 3 mmCooperSurgical 64-651 - Mini Tip Up, L 23 cm, Bite 4.2 mm x 2.3 mm. This product is a substitute for Wallach 907042CooperSurgical 64-656 - Mini...