This is a tamper-proof bit. It is a 3/8 in. drive, #T55. Designed to tackle the toughest jobs with solid durability and keeps them pounding job after job.
- Forged from the finest chrome-molybdenum alloy steel, the best choice for strength
- Radius corner design extends the life of fasteners; design drives the side of the fastener instead of the corner
- Design also avoids rounding of rusted or damaged fasteners
- Black oxide finish and has etchings for identification
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