Construction Tools

You might be referring to "fish tape." That is a rod or wire that is inserted into walls to pull cables through. That is typically used by electricians. That way, they don't need to tear down entire walls to replace or upgrade electrical wiring.

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A fish tape is a mandatory piece of equipment when the project consists of a conduit system. Whether the system is ridged or EMT (electrical metallic tubing) conduit system a fish tape is needed to pull the conductors into the conduits.

That size is correctly 0.375, and is equal to 3/8 of an inch.

A fret saw can make many curved and intricate cuts in wood and plastics. It must be used carefully as the thin blades are fairly delicate and snap easily with clumsy use.

A large blade is rotating in a downward direction creating an obvious danger area if hands or parts of clothing get too close and are picked up by the blade.

Drilling masonry, glass, ceramic or concrete.

You will have to be much more specific to get an answer. Your description fits many items. -Wire gauge and metal at least is needed.

A motor rotates a shaft that carries a drill. -A much better explanation is available if you specify WHICH 'drilling machine' -rather than such a broad definition.

extra hard

A screw would fit this description. Although it should be noted that from a geometric standpoint a screw may be considered as an inclined plane (another simple machine) wrapped around a cylinder.

Yes, gneiss will split with a hammer.

A pair of pliers, as the name implies, consists of two levers working together to give the user a tighter grip than would be available with bare hands. Understanding how those levers function and interact can make for a child's science project, or simply help a workman understand the tools of his trade.

Read more : http://www.ehow.com/about_6374578_do-pliers-work-lever_.html

The function of a drill is make clean holes in objects.

I use a brad tipped drill on oak and other hardwoods.

When the tool is unplugged and a warning sign placed to NOT plug it in.

It is a mitre saw that only angles one way.

A keyhole saw or a sabre saw will do that.

Yes, you can. I have done so many times. Just be sure to reduce your drilling speed.

The blade is places so teeth cut on the push stroke.

Tungsten is a major component in those drilling bits.

Geologists use drill bits covered with small diamonds because diamonds are the hardest natural substance and can effectively drill through hard rocks in the Earth's crust. The diamonds on the drill bits help to create a clean and precise hole without getting worn out easily compared to other materials. This allows geologists to obtain core samples for studying the composition and structure of the Earth's crust.

HSS-R and HSS-G both belong to tool steel of high speed but difference is primarily in the production technology. HSS-R is rolled in warm state and sharpened at the end; HSS-G (ground) is cut in their shape with the help of diamond tools and cooled during the process.

HSS-R should be expected to be more elastic, and HSS-G more hard. Use HSS-G for more precise work because they are better centered generally. Use HSS-R for lower price and little rougher work.

If not accompanied with other designations on tool (like Co for cobalt, or Ti for titanium, or something else) both HSS-R and HSS-G are suitable for drilling the steel of similar strength, about 900MPa. Practically if no other designation is on the tool abandon using them for hardened steel, but instead for ordinary carbon steel, ordinary HSS sections, brass, copper.

Not damage it, but not the best lubrication either.

They are made in China.

I have used tenon saws many times and have never seen any danger involved. The teeth are small , the saw is hand powered so what possible danger can you envision.

You can drill holes in aluminum with a drill as long as you have the proper drill bit. Use a regular drill bit and keep speed moderate.