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Ratchet spanners: what you need to know

A ratchet spanner is used for mounting and dismounting of fasteners in recessed areas. Allows to tighten threaded fasteners without detaching the spanner from the nut.

What are the types of ratchet spanners?

By design:

• Single head. They comprise a head and a handle and are intended for fasteners of one certain diameter.
• Double head. They comprise two heads: one head is a ring with a ratchet mechanism. The second head might be also a ring or an open spanner. Items from this category are known to be more useful as they allow to work with fasteners of different sizes.

By shape:

• Straight. The most widely used.
• Offset. Used for working with fasteners located in hard-to-reach places.

These tools might also have some additional features:

• Flexible head. It is possible to swivel a tool head around the handle which is very convenient when undoing vertical fasteners.
• Ratchet switch. Allows to reverse the direction of movement.

Tips on using ratchet spanners

It is allowed to use the tools only for mounting and dismounting fasteners of the appropriate type and diameter. You shouldn鈥檛 use it as a lever or hammer.

It is not recommended to apply too much force on the handle. It is better to undo damaged fasteners with a standard, non-ratchet tool.

It is not acceptable to use the device if the ratcheting mechanism is out of order. It isn鈥檛 also recommended to use any additional pads between the faces of the nut and the spanner which sometimes happens when trying to loosen a fastener with a smaller diameter than a head.

While performing works, it is important to prevent the tool head from slipping from a nut or a bolt: this might cause injuries. When the work is over, wipe the device with a dry clean cloth. It is not recommended to keep the tool in conditions of high humidity. Otherwise, there is a risk of the body getting corroded and the ratchet mechanism getting stuck.

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