Craftsman 450 pc. Mechanic's Tool Set

3 quick-release ratchets in 1/4", 3/8" and 1/2" drives6 extension bars to extend your reach191 sockets, 6-point, 8-point and 12-point, in both inch and metric sizesAn array of 16 combination wrenches let you slip in where the ratchet won't goA magnetic handle for easy nut or bit installationComes with 12 nut drivers175 screwdriver bits give you a nice variety40 hex keys6 adaptors are includedIncludes a 3-drawer case