This is a 3/8 in. Female x 1/4 in. Male Adapter. It is 3/8 in. drive. Re-engineered to dramatically increase durability. 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
- Designed to tackle the toughest jobs with solid durability and keeps them pounding job after job
- Black oxide finish and has etchings for identification
- Chrome molybdenum alloy steel for long life
- Forged from the finest chrome molybdenum alloy steel
- the best choice for strength and durability