How does a ratchet spanner work?
A ratchet mechanism works using a spiked gear and one or two spring-loaded pawls. As the gear turns, the end of the pawl slides up a curved surface of the gear and then drops down into a groove. This makes the clicking noise a ratchet spanner makes. The spanner can then function as normal.
What is a multi spanner used for?
Their key role is to enable the tool user to achieve a firm tightening or loosening grip on multiple different sizes of fastener, as opposed to having to swap for a different non-adjustable spanner size every time they come up against a new gauge/diameter of nut, bolt or pipe section.
What are the different types of spanners?
Following are the different types of spanners:
- Open-end or single-end spanner.
- Double-ended spanner.
- Ring spanner.
- Socket spanner.
- Box spanner.
- Combination spanner.
- Hook spanner.
- Adjustable spanner.
What is a ratcheting wrench?
What is a Ratcheting Wrench? A ratcheting wrench works virtually identical to a socket wrench – it has ratcheting pawls inside that lets it spin in one direction and turn the bolt in the other. At the same time, it has the relative profile of a combination wrench that you turn to when a socket won’t fit.
What type of mechanism is used in adjustable spanner?
The adjustable wrench works by turning a screw, which is usually located at the bottom of the head. While ordinary wrenches can only be used on a particular size nut, an adjustable wrench can be used on a much wider variety of nut sizes [source: Comcast].
How does an adjustable spanner work?
An adjustable spanner is an open-ended wrench with a moveable jaw. Its function is the same as any regular spanner – to grip fasteners, such as nuts and bolts – however, only adjustable spanners can grip fasteners of all sizes, thanks to their moveable jaw.
What is the most common ratchet size?
Common ratchet sizes include 1/4-in. drive, 3/8-in. drive, 1/2-in. drive and 3/4-in.
What is spanner size?
Modern spanner sizes refer to the distance across the flats of the hexagonal nut or bolt they would fit. A 17mm spanner therefore fits a nut 17mm across its flats and this is normally a nut to fit a 10mm diameter bolt (M10).
How is a multi spanner made?
They are made from steel tubing that is shaped with forming tools which push into the ends of the tube, creating the profiles. The spanners are then tempered to increase the steel’s strength. If the spanner has multiple components, they are fitted together, often by hand.