Metallics BHD9 Bell Hanger Drill Bit Dia 1/4" 24" (1 pc)

A bell hanger bit is a long-shank masonry/wood bit with a hole through the shank near the tip, so you can drill through a wall, thread wire or fish line through that eye, and pull the run back through the hole in one motion. The Metallics BHD9 is the 1/4 inch diameter, 24 inch length version, which handles typical wall and sill-plate thicknesses in low-voltage, alarm, and communications wiring work.

The BHD9 is 24 inches overall, so usable drilling depth is somewhat less than that once the chuck grip and flute run are accounted for. In practice it reaches through standard framed walls, double-plated floor assemblies, and most block or brick veneer with sheathing. For anything thicker than roughly two feet you need a longer bell hanger bit or an extension.

Yes. The BHD9 is a 1/4 inch diameter bit, so it seats in any 3/8 inch or 1/2 inch keyless chuck on a standard cordless or corded drill. No hammer drill or SDS adapter is involved.

It cuts a 1/4 inch hole. That clears a single pair or a thin alarm/thermostat cable pulled through the bit's eye, but it is tight for bundled runs or a jacketed Cat cable with a connector on it. If you are pulling multiple cables or a terminated end, step up to a larger diameter bell hanger bit.

One bit per order, supplied in a pouch. It is a single-piece item, not a set of diameters, so if you need both a small and a large pull hole size you will be ordering two separate bits.

BHD9 is the Metallics part number for the 1/4 inch diameter, 24 inch bell hanger drill bit. Use that number when ordering or cross-referencing with a distributor.