- These insert bits feature precision-tip geometry for superior fitment and reduced stripping
- Insert bit is made from heavy-duty, cold-forged, high-grade steel to withstand high-torque output
- Impact drivers provide these screwdriver bits with high durability and long life
- Power Groove is designed for compatibility with IRWIN Impact Performance Series magnetic screw-hold attachments
- These insert bits have a black oxide finish to resist corrosion and increase life
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