201-Piece Mechanics Socket Tool Set SAE Metric with Case for Automotive Repair. Material: Chrome Vanadium Steel. Finish Type: Polished, Plated. Number of Pieces: 201. Drive System: Hex Keys. Bit Compatibilities: Nut Drive. Item Weight: 16.49 pounds. Product Dimensions: 17.7 x 13 x 3.53 inches. Item model number: AMZ1702. Item Package Quantity: 1. Head Style: PH, PZ, Hex, Star, Square. Compatible Fastener Range: Includes ¼? , ?? , and ½? Drive ratchets and extensions, suitable for use with corresponding drive fasteners. Mechanic’s 201-piece tool kit and socket set for tackling multiple sizes and types of fasteners, especially nuts and bolts. Includes most popular 1/4, 3/8 and 1/2 inch sockets, hex keys, and screwdriver bits; both Metric and SAE sizes included. Chrome-vanadium steel forged body for torque, strength, and durability. Full polished-chrome finish provides anti-corrosion protection. Case provides convenient tool storage and portability.