Free ring wrench KINGTONY 373108M, size 8 mm.

KINGTONY 373108M Ratcheting Combination Wrench No. 8 Size 8 mm

     Wrenches

used in mechanical work come in many types, varying in shape according to their application. Most quality wrenches are made of steel and formed through forging, but the highest-performing wrenches are forged from chromium-vanadium alloy steel. Adjustable wrenches, such as adjustable spanners and pipe wrenches, are designed with handle lengths proportional to their maximum jaw opening. Fixed-jaw wrenches, box-end wrenches, and socket wrenches—whose jaw sizes cannot be adjusted—are manufactured to standard nut and bolt sizes. The handle length is standardized to match the torque applied to the nut and bolt. Some specialty wrenches are made longer than usual to provide extra leverage. For socket wrenches, which offer a variety of extension handles to suit different working conditions, one must carefully consider which handle to use for each job. Since every type of wrench is manufactured for specific tasks to achieve maximum efficiency, proper selection is essential for quick, convenient, and safe operations.

     How to Use Wrenches

•  Always select a wrench that matches the bolt/nut head size exactly.

•  When using socket wrenches, choose an extension handle suitable for the task.

•  When using any type of wrench to tighten or loosen bolts, always pull the wrench toward yourself.

•  Do not use extension bars or cheater pipes to tighten or loosen fasteners.

     Storage and Maintenance

•  Inspect and maintain the wrench to keep it in efficient working condition.

•  Clean after every use.

•  Coat with light machine oil every time before storing.