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Materials
You can't select tools or plan out a repair until you know your materials. Read about the different kinds of materials you will encounter, and how to approach them in your home repair project.
HAND TOOLS
Hand tools provide simple and portable means for completing a home improvement or woodworking project. Learn how to safely use and maintain hand tools.
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How do spray bottles pump fluid?How do spray bottles (like the ones used for cleaning products) pump fluid? Why do you have to pump them a couple of times before they start spraying? Find out the answers to these questions with this helpful article. See more »
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How do stud finders work?
I have an electronic stud finder, and I am amazed at how well it works. How does it know where the studs are? See more »
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How Laser Levels Work
Some of us don't think crooked kitchen cabinets are delightfully quirky or that uneven tiles give the bathroom floor personality. Some of us want things to be straight. Is a laser the answer? See more »
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How Spud Guns Work
A spud gun can hurl potatoes hundreds of feet at close to 400 miles per hour. But why is this staple of the dinner table such a popular projectile? Learn the science of spud guns and how they can be customized. See more »
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What does "Case Hardened" mean when it's stamped on a piece of metal?
Metal locks come in a variety of shapes, sizes and are made of various materials. Some locks have the words "Case Hardened" stamped on it. What does "Case Hardened" mean? See more »
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Why do tools have "Drop Forged" stamped on them? What is drop forging?
A number of tools, like wrenches and C-clamps, have the words "Drop Forged" stamped on the handle. What does that mean? Find out with the help of this article. See more »
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Backsaw
A backsaw is typically used to cut tenons, also called joints or grooves, in wood. Find out how to safely use this handy tool in this article. See more »
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Chalk Line
A chalk line makes it easy for anyone to draw a long, straight line. Learn how to use this marking device at HowStuffWorks. See more »
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Clamp
A clamp provides a useful grip to hold or glue wood, paper, plastic, and other materials. Learn about C clamps, spring clamps, and others on this page. See more »
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Continuity Tester
A continuity tester is an easy-to-use electrical tool that will help you pinpoint problems in wires or components. Learn about continuity testers. See more »
![What does "Case Hardened" mean when it's stamped on a piece of metal?](http://static.ddmcdn.com/gif/combination-lock-100x60.jpg "What does "Case Hardened" mean when it's stamped on a piece of metal?")
![Why do tools have "Drop Forged" stamped on them? What is drop forging?](http://static.ddmcdn.com/gif/q376-100x60.jpg "Why do tools have "Drop Forged" stamped on them? What is drop forging?")
