Irwin 1837465 Impact Power Bit Phillips #3-4"

Irwin Impact Performance Series fastener drive bits are engineered for maximum durability and long life with impact drivers. These bits are designed with precision tip geometry fitting in fasteners more precisely, reducing stripping and cam-out. Manufacturers with heavy-duty, cold-forger, high grade steel. They will withstand extremely high torque output. The black oxide finish resists corrosion and increases the life of the bit. They are designed with a 1/4" quick-change shank so they work with all types of impact and rotary drivers. Plus they are a unique Power Groove design for use with the exclusive Irwin Magnetic Collar Attachment, preventing fasteners from slipping and wobbling. 

• Built for maximum durability and long life with impact drivers. 
• Precision tip geometry delivers superior fitment, reducing stripping and cam-out
• Power groove designed for compatibility with Irwin Impact Performance series Magnetic Screw-Hold Attachment
• Manufactured with heavy-duty, cold-forged, high-grade steel to withstand high torque output
• Black oxide finish resists corrosion and increases life of bit
• 1/4" quick-change shank is designed to work with impact drivers, and reduces slipping in standard drill chucks