Metallics QB20 Wood Bit Quik-Bit Flat 1/4" 16" (1pc)

The QB20 is a 1/4 inch diameter flat (spade) wood bit with a 16 inch overall length, so it bores a 1/4 inch hole and reaches through framing from one side without a separate extension. That reach is what makes it an electrician's drilling bit rather than a bench bit: it will pass through a 2x stud wall cavity or multiple studs in line from a single position.

A 1/4 inch bore is sized for fish tape, pull string, and small low-voltage runs such as thermostat, alarm, or data cable. For 12/2 or 14/2 NM cable through studs you want a larger diameter flat bit, typically 3/4 or 7/8 inch, so the cable passes without binding. Use the QB20 for pilot holes and small pulls.

Flat bits like the QB20 cut with a paddle-style tip, clear chips by pushing them back out the hole, and run well in a standard corded or cordless drill. Auger bits self-feed and pull themselves through thick stacked lumber with less push from the operator, which is the better choice for deep multi-stud or beam drilling. At 1/4 inch, the flat bit is the practical pick, since augers in that small diameter are fragile in framing work.

No. The Quik-Bit QB20 is a wood bit, ground for wood and similar soft materials. Metal studs call for a step bit or a bi-metal hole saw, and masonry or concrete requires a carbide-tipped hammer bit. Running this flat bit into steel or block will dull the cutting edges immediately.

One bit per order. The QB20 Quik-Bit ships as a single piece in a pouch, so if you are stocking a van or kitting multiple crews, order one per tech rather than expecting an assortment.