A good set of allen wrenches is a must have for any homeowner, or shade tree mechanic. Basically, an allen wrench is a metal rod, sometime ell shaped, or sometime tee shaped. The metal rod is eight sided, like an octogon. They can be made from several different metal alloys, depending on the quality of the kit purchased. A good set generally contains SAE sizes 1/16 through 1/2 inch. It's a good
. ide to purchase both an SAE set, and a metric set. Allen head screws have a recessed are in the top that is octagon shaped, allowing the proper allen wrench to turn it. Allen head screws can be found on many products. It is very commonly found on exercise equiptment. A very good place to see an example of an allen head is to look on the bottom of a garbage disposal. Many times upon purchasing products that require assembly such as exercise equiptment or even furniture, an allen wrench is included.
