Klein Tools 7/16" Power Nut Driver

Yes. The PND716 series uses a 1/4 inch hex quick connect shank, so it drops into any standard 1/4 inch hex chuck or quick-change collet on an impact driver or drill. It's impact rated for aggressive power tools, and the shank has a wrench assist flat if you need to break a stubborn fastener loose by hand.

That's what it's built for. The 7/16 inch Klein power nut driver has a hollow shaft, so the end of a long bolt, stud or threaded rod passes up inside the shank instead of stopping the driver. The magnetic tip holds the nut on the way to the work.

Only the out-of-chuck length. The PND7165 is the 5 inch version and the PND71610 is the 10 inch. Both are 7/16 inch, both hollow shaft and magnetic. Take the 5 inch for general strut, sheet metal screw and hex head work where you want control; the 10 inch reaches down into deep boxes, between joists, or over obstructions where the chuck cannot get close to the fastener.

Yes, if the head takes a 7/16 inch socket, which is the standard hex on 1/4-20 strut hardware. The Klein PND716 is a 7/16 inch magnetic nut driver, and the hollow shaft means long strut bolts or threaded rod hangers won't stop it from seating on the nut.

Not safely. A non-impact-rated bit or nut setter can shear or shatter under impact torque. The Klein PND716 is impact rated for aggressive power tools, which is the reason to use it over a standard hand nut driver blade. Klein also warns against using it to pry or chisel, and to wear approved eye protection.

Order Klein Tools PND71610 for the 10 inch out-of-chuck version. The short one is PND7165 at 5 inch. Both are the same 7/16 inch hollow shaft magnetic driver with a 1/4 inch hex quick connect shank.