Standard Wrench Set 8pc, #90173

8 Piece Wright tool miniture open-end wrench set is manufactured to the ISO 9001 standard. This International standard of quality assures customers of top performance and value. Utilizing four different hot-forging processes and 4140 alloy steel yields longer wear, higher strength and better reliability than cold-formed tools. Wrench sizes: 7/32" x 7/32", 15/64" x 15/64", 1/4" x 1/4", 9/32" x 9/32", 5/16" x 5/16", 11/32" x 11/32", 3/8" x 3/8" and 7/16" x 7/16". Supplied in a plastic pouch. Made in the USA.