IDEAL Industries HD Keystone Tip Screwdriver, Round Shank

Round shank. IDEAL also builds square shank versions of this line, and those are the ones that let you put a wrench on the shank for extra turning force. If you need wrench-assisted torque on seized screws, the round shank version is not the one to order.

The tip is cross-ground, which grips the screw slot tightly instead of camming out, and it is vapor-blasted so it does not chip the plate when the blade slips off the screw head. That combination is why this is a common driver for wiring device and wall plate work.

Heavy duty. The shank is chrome vanadium steel and is oversized compared with a standard driver, which is what lets it take harder turning without twisting. Nickel-chrome plating handles corrosion on trucks and in damp mechanical rooms, and the handle has cushioned rubber grips.

A keystone tip flares out wider than the shank at the blade, giving more steel behind the tip for heavy turning, but that flare means it will not drop straight down into a deep counterbored or recessed screw hole. A cabinet tip runs parallel to the shank and reaches those. For general electrical device, panel and terminal screws, keystone is the standard choice, and that is what these IDEAL drivers are.