If you need a hex key, the WERA 05022715001 SAE Plain Ball Hex Key is an excellent choice. It is made of stainless steel and comes with a ball hex tip for easy access in tight spaces. The hex key has a blade length of 6 1/16 in., handle length of 6 1/16 in., and arm length of 6 1/16 in. The blade material is stainless steel, while the handle material is stainless steel. Its finish is also stainless steel and it has a plain handle type. This 7 11/16″ long hex key has a 3/16″ tip size and can be used to measure SAE units. If you are looking for quality tools that will help make your job easier, this WERA SAE Plain Ball Hex Key should do the trick.