The spring in my Henkles poultry shears has broken. It is a little uncommon being a coil made from a flat strip of metal. It is wider in the middle and tapers at each end where it fits in to the handles. When you squeee the handles together the coils collapses in on itself. Does anyone have suggestions where I might find a replecement. I spent most of yesterdeay afternoon on the 'net to no avail.