This is an impact driver and it is 14mm. It is 3/8 in. drive and stubby， hex design. 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
Quality made
Easy to use
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