The DEWALT MAXFIT® SQ2 Impact Power Bit is engineered for maximum fastener engagement and durability in high-torque applications. This #2 square (SQ2) power bit features a precision-machined tip for optimal fit, reducing cam-out and screw stripping. The built-in torsion zone absorbs torque to help extend bit life, while the magnetic sleeve improves fastener retention for better control. With a 3-1/2 inch (88.9 mm) length, this impact-rated bit is ideal for use with impact drivers and drills in professional and DIY fastening tasks.