Cheap Tourque wrenches worth it?

#1

https://www.wiggle.com/p/lifeline-essential-torque-wrench-set?color=black&toolSizes=One+Size&utm_source=google&utm_term=&utm_campaign=WGL_UK_GGL_PMX_SMA_MAN_CYC_ALL_NA_NA_NA_TIER3_NA_NA_Endgame_Newstructure&utm_medium=base&gad_source=1&gclid=CjwKCAiAp5qsBhAPEiwAP0qeJmtoJUBOEaMZtuazrkK3M_muzJ-29nosUAD-5C3S_EQQLHkaz0ZW5RoCHN8QAvD_BwE&gclsrc=aw.ds

Heyo - considering asking for this as an xmas present but been told no torque wrench is worth it unless you spend £££ to get one with a calibration certificate - what are peoples thoughts?

#2

Depends on your use case. I’m a big fan of those specific torque wrenches for a home workshop.

#3

When buying used ones for CNC with @asander1, I just did some checks at key torque specs with a vice, string, and weight.

Fundamentally torque is just a proxy for fastener tension anyways. There’s a lot of variability in the friction that drives it.

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#4

Which is why torque limits on bikes are such a clusterduck: you wouldn’t want to install a steel bolt without anti-seize or grease, but, e.g., the 40 Nm instruction for crank bolts from many manufacturers is for dry bolts. Nonsensical.

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