Stahlwille 58250020 Reversible Ratchet Insert Tool, 1/2-Inch Square Drive, 60 Fine Teeth, Made of Chrome Alloy Steel & Chrome-Plated, for Use w/Stahlwille's Torque Wrench No. 730/20 Quick, Size 20

Very solid selector mechanism.

I have used my Stahlwille Manoskop torque wrench since the early 1990s. I became a big fan of Stahlwille when working for Siemens in Germany. I replaced the heart shaped spring in my old ratchet insert a decade or so ago, but there is enough wear on the old ratchet now to justify replacing it rather than repairing again.The Manoskop torque wrench seemed like a major investment at the time, but 30 odd years later I don't have much to complain about having worn out the ratchet insert. At least with Stahlwille I can replace just the insert.The Manoskop itself still calibrates OK. My son will use my Stahlwille tools after I have gone.

I'm a Stahlwille fan since 1982, beginning of my precision mechanic apprenticeship in Switzerland.This part fit perfectly my 730/40 torque wrench..Thank you for your continued research of quality.Customer for life.