Combination ratchet spanners

Combination ratchet spanner is a tool for work with threaded fastening elements, on one side of which the open end head is, and the wrench profile with the ratchet – on the other side. Such devices can be used when working with bolted connections located both on open surfaces and hard-to-reach places. Ratchet significantly simplifies maintenance of fastenings reducing time of their mounting or dismounting.

Types of combination ratchet spanners

Both working profiles of such a tool always have the same size, for example, 8, 10, 12, 13, 14, 17, 19 mm. They are made of durable materials which are able to withstand significant loads. In most cases they are made of tool steel, for instance, chrome-vanadium. Most tools have a protective coating of nickel, chrome or other materials with high anti-corrosion characteristics.

Apart from classic models, manufacturers offer tools with the joint mechanism located in the connection place of the ring-type part. With the help of it one can change its slope towards the handle in 0° – 180° range. It provides access to fastening elements located in hard-to-reach places.

The ratchet mechanism of the ring head can have different quantity of teeth: the more teeth are, the less the tool rotation angle during work is, and the smoother it rotates. Also, there can be rotation direction switch. Price of these products is higher.

Tips on combination ratchet spanners use

1. Use the tools in strict accordance with sizes of mounting and demounting fastening elements. If you often repair and service different car units, it is better to buy a tool kit for working with fastenings.
2. Don’t overload the accessories. Don’t make too much effort when tightening. Don’t try to unscrew old rusted bolts using the wrench profile.
3. Before using, necessarily check tools for defects presence. Don’t use defected tools.

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