The SP Tools Mobea Hose Clamp Lock Set, No. 16200, is designed to help technicians save time when removing and servicing engine hoses that are fastened with spring style clamps. There are three sizes of clamp locks included in this kit, covering the range of hose clamps used on most engines. According to the company, the challenge a mechanic faces is that they need to either unload the clamp, which can be difficult to reload, or leave their pliers locked in place for the duration of the job. These low profile hose clamp locks allow technicians to keep the clamp loaded, freeing up pliers for the next clamp.