INTERIOR CUTTING DIES
1. Tool Steel 2. Supplies 3. Preparation 4. Layout Fluids 5. The Design 6. Clamp Plates 7. Drill Holes 8. Taper Holes 9. Thread Holes 10. Attach Plates 11. Drill Access Hole 12. Cut Interior Die 13. Two Methods 14. Stripper Plate 1 15. Stripper Plate 2 16. Make the Hinge 17. Cut Exterior Die 18. Assemble Plates 19. Final Alignment 20. Bend top Plate 21. Bend Bottom Plate 22. Heat Treating 23. Blanking 24. Notes 25. General Info
What we are looking for is the hinged portion of the top plate to be "sprung" open about 1/16" (2mm) at the top end. Do the same operation to the bottom plate with its "sprung" opening to be about 3/8" (10 mm).
