This is an internal Torx Impact Driver; T40. It is 1/2 in. drive. 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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