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The IRWIN 326001 is a carbide-tipped rotary hammer drill bit designed for drilling into masonry and concrete. It features a straight shank and a single flute, with a usable flute length of 4 inches and an overall length of 6 inches. The bit diameter is 5/32 inch (0.1563 inches). The carbide tip provides the hardness needed to penetrate block, brick, and concrete without the bit dulling prematurely on hard aggregate. The high-speed steel body absorbs the rotary hammer's impact energy while the carbide cutting edge does the work. Licensed tradespeople and experienced DIYers working on anchor installation, conduit runs, or rough-in penetrations through masonry walls will find this a standard single-piece addition to a drill kit.
This bit is suited for light-duty masonry drilling tasks in residential and light commercial settings. Typical applications include setting anchors in concrete block, drilling through brick for conduit or pipe penetrations, and creating pilot holes in poured concrete slabs or walls. The straight shank fits standard three-jaw chucks on rotary hammer drills and corded or cordless hammer drills with chuck capacity accommodating 5/32 inch shanks. It is sold as a single-piece unit.
Designed as an OEM-style replacement or stock bit for rotary hammer drills and hammer drills equipped with a standard three-jaw chuck accepting a 5/32 inch straight shank. Intended for use in masonry, brick, block, and concrete workpiece materials.
This bit is installed and used by electricians, plumbers, HVAC technicians, and general contractors during rough-in work requiring masonry penetrations. Before drilling, confirm the drill is set to hammer or rotary hammer mode and that the work area is clear of embedded conduit, rebar, or live utilities. Allow the bit to do the work at moderate pressure — excessive force can overheat the carbide tip and shorten service life. Wear appropriate eye and respiratory protection when drilling masonry per applicable site safety requirements.
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