#1 3-1/2" Square Recess Bit DW2231-SBD

Dewalt's professional-grade #1 square recess power bit designed for precision fastening and extended reach in industrial and construction environments. Featuring a 3.5-inch overall length, this bit is engineered to access fasteners in deep recesses and tight channels where standard bits cannot reach. It is manufactured from shock-resistant tool steel and undergoes an advanced hardening process to maximize durability and minimize tip wear, effectively reducing cam-out and stripping during heavy-duty use. Key Features Precision-machined #1 square recess tip provides a secure fit for small fasteners to minimize slippage.
3.5" (88.9mm) extended length provides critical access to screws in deep or hard-to-reach areas.
1/4" hex shank offers universal compatibility with impact drivers, power drills, and quick-change adapters.
Constructed from heat-treated, shock-resistant steel for maximum durability and resistance to fracturing.
Advanced hardened core strengthens the bit to handle high-torque loads without breaking.
Zinc phosphate coating provides a protective finish to resist corrosion and wear.