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Will do.

Taking your advice and making some new cases and die sections. Thanks for your help.

The .900 is the depth of the die section. The die section material is M2 heat treated to 60-62 R/C and highly polished. The long leg of the parallelogram is 1.211 and the short leg is .444 with a .375 fillet between them. The other two corners of the parallelogram are sharp, with no radius. The...

Again, good info. We used to use a lot of H-13 when we were injection molding so I've got some familiarity with it. The die section is .900 thk.; 2.316 at the top with a one and a half degree taper to the bottom. The bottom diameter is 2.363. The die is made in two "L" shaped parts following the...

Thanks Metman. That sounds like a good choice. We work with the air hardening steels so much that I tend to forget what's really out there.

We are presently taking 5/8 dia. wire and forming it into a parallelogram shape. The die section is split into two pieces and has a six thousandths press fit into a casing that is 5.810 dia. and made from 4340 unheattreated material. We experience some loosening of the die after running...

I'm redesigning the spanner type wrench that's presently being used to tighten a nut that has a 5 1/2 -6 T.P.I. thread. I'm going to a box-end style and am trying to decide what would be the best material to use. I want toughness along with some hardness. We've made one of the spanners out of...

What's a good material to make a spanner wrench from. It is for an eight inch nut with lugs and is tightened by striking it with a sledge hammer.