Wrenches are made in various shapes and sizes and are used for gripping, fastening, turning, tightening and loosening things like pipes, pipe fittings, nuts and bolts .
How should wrenches be used?
The proper way to hold a wrench is by its handle . Turn the nut until the jaws match the job. Place the hook jaw (movable jaw) so that it will point towards the direction you want the job to rotate.
How would you identify a wrench What is a wrench used for?
Wrenches perform the same function as ratchets and sockets — tightening and loosening fasteners — but there are differences and situations that call for one over the other. ... A wrench with an open end fits around a fastener instead of over it, so you can slip it into an area where there isn't room for a socket.
What was the wrench originally used for?
A wrench is a tool – the English call it a spanner – that is usually operated by hand, and is made for tightening or loosening bolts, nuts or anything that needs to turn. Solymon Merrick patented the first wrench in 1835. The physics of a wrench are that the tool works as lever.
What is the most common style wrench used?
One of the most common type of wrench you're going to come across or must have used is the open-end wrench . You'll surely find one of these in every mechanic or automobile workshop you visit. It's a one-piece wrench with a U-shaped opening made to fit the different sizes of nuts and bolts.
Should you push or pull a wrench?
Always pull, rather than push , a wrench for greater control and balance. That way, if the nut or bolt should suddenly loosen, you're less likely to go flying. Never try to get more torque from a wrench by using a cheater bar or other device to extend the leverage.
Does it matter where you hold the wrench?
It means that the actual torque applied to the fastener varies if the hand position on the wrench is varied (even if the wrench is preset). ... Therefore if an operator is holding a “length dependent” torque wrench at the end of the handle, the torque output might be 25 foot-pounds applied for the fastening application.
What is the difference between a wrench and pliers?
Wrenches are designed to fit nuts, bolts and other standard fasteners. Pliers grip, turn, squeeze and rotate round or irregularly shaped objects of most any size, from baling wire to barbecue grills.
What is the difference between a ratchet and a wrench?
Defining Torque Wrenches vs.
A ratchet is a mechanical device that only allows movement in one direction. When it is equipped onto a wrench, it allows the user to set two turning directions : one where the wrench head is fixed and one where it spins freely.
What is the safest way to use a wrench?
- 1) Only use quality wrenches. ...
- 2) Match your wrench size to the job. ...
- 3) Always pull, never push. ...
- 4) Keep wrenches clean. ...
- 5) Never strike a wrench with a hammer. ...
- 6) Do not attempt to add leverage with other objects. ...
- 7) Never use a damaged wrench.
Who uses wrench?
Wrenches are made in various shapes and sizes and are used for gripping, fastening, turning, tightening and loosening things like pipes, pipe fittings, nuts and bolts. There are basically two major kinds of wrenches: Pipe wrenches used in plumbing for gripping round (cylindrical) things.
Why do they call a pipe wrench a monkey wrench?
Hall sent a clip from World Wide Words, an etymology website, which suggested that the wrench got its animalistic moniker because it was similar to a “key wrench ,” but was different enough to be called a “non-key” wrench. That awkward phrasing was then corrupted to “monkey wrench.”
Why is it called a Ford wrench?
The term monkey wrench is also sometimes used loosely, usually by non-tradespeople, to refer to the pipe wrench (owing to their broadly similar shapes). ... These are also known as a Ford wrench owing to this type of wrench being included in the tool kit supplied with every Ford Model A.
What is a 6 sided wrench called?
WRENCH TYPE: Hex-Key Wrench
Also called Allen wrenches (although “Allen” actually refers to specific brand known for making hex-key wrenches), these short six-sided bars of steel are characteristically L-shaped, with one side shorter than the other.
What are the standard wrench sizes?
Wrenches: Standard Combination Wrenches ( 1/4, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1 ) Metric Combination Wrenches (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19) Standard Flare Nut Wrenches (3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 7/8) Note: Each wrench may combine two sizes.
What does a wrench look like?
A crescent wrench looks a lot like a monkey wrench ; in fact, most of the simple adjustable wrenches you know look like crescent wrenches. A crescent wrench is usually made of steel and has a relatively flat handle that's a number of inches long.
