Called BS on that one torque wrench calibration service out of Omaha...

Had a 5-year-old Snap-on that I was sure was still dead-on, but after it let a head bolt strip on a customer's 2018 F-150 I finally sent it in and the report showed it was off by 12 ft-lbs, so who else has had a tool lie to them that bad?

2 comments

2 Comments

fiona_lane5h ago

Nah, hold up, that's not quite right. "Let it strip" makes it sound like the wrench caused it, but torque wrenches don't really "let" bolts strip by being off 12 ft-lbs. A 12 ft-lb error at 80 ft-lbs is bad, but it wouldn't cause stripping on its own. Stripping usually means the bolt was already junk, the threads were dirty, or you used the wrong lube on the threads. A torque wrench can be off and still not strip a bolt, the metal just gives up if the fastener is compromised. So that Snap-on was lying to you for sure, but it's not the whole reason that head bolt gave out.

nancy3515h ago

Yeah, pretty much. The wrench just finished off a bolt that was already doomed.