56-Piece 1/4" Drive Socket Set, SAE (5/32"-9/16") & Metric (4mm-15mm), Deep & Shallow, 72-Tooth Rac

6-Point Design & Retention Hole: The 6-point design ensures a perfect fit between the socket and bolt, minimizing wear and prolonging the bolt's lifespan. The pneumatic hole keeps the socket securely connected, preventing it from falling off during use