How to take care of wrenches

Common method of using spanner that are not covered by warranty :-

• misuse of spanners as chisels or hit wrenches with a hammer to increase driving forces.
• Thinning out certain facets of wrenches to increase operating spaces. The altered, thin open-end of wrench allows users to work in a confined area but distorted the usefulness of the wrench.
• extension of the wrench handle to improve leverage actually distort and damage the wrenches.