5/16-Inch Nut Driver with 6-Inch Shaft

A 5/16-inch nut driver on a 6-inch shaft, with Klein's smooth Comfordome plastic handle in amber. Klein specifies it for work on stacked circuit boards or other long bolt applications, which is the polite way of saying it reaches places a stubby driver and a ratchet both give up on.

Why shaft length beats a socket here

Run a nut down a long stud with a socket and you run out of ratchet swing before you run out of thread. Use a standard short driver and the shaft bottoms out on the end of the stud with the nut still proud. The hollow shaft on this one swallows the thread and keeps driving. Klein adds internal flanges to anchor the shaft against twisting, a chrome-plated shaft to resist corrosion, and states that the tool meets or exceeds applicable ASME / ANSI specifications. Worth knowing before you buy: Klein lists it as not insulated, so it belongs on de-energised work.

Specifications

Best for: driving nuts a long way down studs and stacked assemblies where a standard-length driver bottoms out and a ratchet has nowhere to swing.

Common questions

Is this nut driver insulated for live work?
No. Klein lists it as not insulated, so treat it as a de-energised tool. Live terminal work needs one of Klein's insulated nut drivers rated for that purpose instead.

How long is the shaft and the tool overall?
Klein specifies a shaft length of 6 inches and an overall length of 9.625 inches, which is what lets it run a nut a long way down a stud without bottoming out on the thread.

Is the tip magnetic?
No. Klein lists this driver as non-magnetic, so the nut will not stay on the tip by itself. Start the nut by hand overhead, or choose a magnetic driver for that kind of work.

Is Klein still producing the S106?
Klein's listing states that the product is no longer in production. The catalogue number is still the right thing to order against while stock lasts, and the specification has not changed.