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The ITM 255h24 is an M2 high-speed steel jobber-length drill bit designed for use with impact drivers. It features a 1/4-inch hex shank that seats directly into impact driver chucks without a separate adapter. At 3/8-inch diameter and 5 inches in length, this bit handles through-hole drilling in metal, wood, and composite materials on the job site. The M2 steel construction provides heat resistance and edge retention under the higher torque loads that impact drivers generate compared to standard drill/drivers. Electricians, plumbers, HVAC techs, and general contractors reach for this format when drilling anchor or fastener clearance holes in tight spaces where a full keyed chuck is impractical.
This drill bit is suited for both residential and light commercial trade work. Common applications include drilling conduit knockouts, pipe clearance holes, bracket mounting holes, and structural penetrations. The hex shank format makes it a practical addition to any impact driver kit carried on service vans or in tool bags where quick bit changes are routine.
Designed as an OEM-style replacement or direct-fit bit for impact drivers and drill/drivers equipped with a standard 1/4-inch hex chuck or quick-change bit holder.
Installation should be performed by qualified tradespeople following applicable safety codes. Secure the hex shank fully into the impact driver chuck before applying power. Wear appropriate eye protection when drilling metal or composite materials. Reduce feed pressure as the bit breaks through the far side of the material to prevent bit walking or workpiece damage.
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