Bluebow magnetic impact nut driver sets (1)

Every Bluebow nut driver has the same build: a Cr-V steel body with a 1/4 inch hex shank, a magnet sunk in the socket, and the size laser-marked on the side. What changes between the 12, 21, 54, 80 and 86-piece boxes is what sits around the drivers. The 12-piece box holds the drivers, SAE from 1/4 to 9/16 inch and metric from 6 to 14 mm, and little else. Add a bit holder, socket adapters and a quick-release extension and you have the 21-piece. From 54 pieces up you get S2 steel driver bits, socket adapters, extensions, universal sockets and a wing nut driver, laid out in a case with the size marked at every slot, and the 86-piece goes on to a 1/4 inch ratchet wrench, a flexible shaft and an angle driver.

The hex shank is the point. It drops into an impact driver, a drill chuck or a 1/4 inch bit holder, so a sheet metal screw, a hex head lag or a hose clamp band comes off the same tool you were already holding. The magnet holds the nut or the screw head in the socket when you reach overhead or into a cabinet, which is where a loose fastener otherwise disappears.

Keep your eyes covered when you run these on an impact driver. OSHA's eye and face protection rule asks for protection with side shields wherever particles can fly, and a nut driver that slips off a rusted hex head throws exactly that.

Piece counts and contents are read from each set's own box. If you already own bits and adapters, the 12 or 21-piece box is the honest buy.

This set is part of the Bluebow flagships, from $8.55 to $47.99 in our last catalog update.