The manufacturer has a PDF Instruction Sheet for how to properly insert the spring in all the RX tools.

A Note From a Customer: "Let me explain the condition of my hands - the joints on all my fingers are enlarged from rheumatoid arthritis. When it is damp or cold I shutter at the thought of asking my hands to do wire work. I experience discomfort when I bend or exert pressure on my joints. I recently purchased the Lindstrom RX cutters and noticed an immediate improvement in how my hands feel. The longer handle provides a strong grip and rests easily in the palm of my hand. The cushioned handles are comfortable when applying pressure and the cutters give a very precise cut."
Janis Long - Doylestown, PA