When you think of insulated tools, a torque wrench isn’t the first tool that comes to mind. Yet there must be a need for them, because several companies sell insulated torque wrenches. Knipex has sold their model 98 43 for a while, but is obsoleting it in favor of two new models.
Besides now making both a 1/2″ drive and a 3/8″ drive, the only real differences seem to be a slightly tweaked handle design, a 10 oz. weight increase to 43 oz., and a torque range change from 8-54 Nm to 5-50 Nm. All the models are reversible to tighten both right-handed and left-handed threads.
The torque wrenches are made from chrome vanadium steel and safe to 1000V following IEC 60900 DIN and EN 60900 certifications. You adjust the torque using the transparent insulated scale and can lock sockets in place with the black screw lock.
Including the calibration certificate, look at spending at least $400 for one of these insulated torque wrenches, but it’s likely you could spend more than $500.
Torque Wrenches [Knipex]
Street Pricing [Google Products]
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2 Responses to This Torque Wrench Won’t Shock You
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Seems like a good idea to me. Electrical feeders into enclosures, pannelboards, etc require specific torque tightening specs. Sometimes electricians have no choice but to work in a panel where part of it is hot. A tool like this might add a little safety to the situation.
Additionally, a market for this is already in place. If an employer knows that a safer products exists, but doesn’t provide it and then an accident happens… Well that’s why God invented lawyers.
I use a Cementex brand insulated torque wrench. I use it mostly to torque battery connections on large UPS systems. We have 30 battery strings, floating at 405 volts DC.