miércoles, 5 de noviembre de 2008

Hand tool



Enlace 1.- A wrench or spanner is a tool used to provide a mechanical advantage in applying torque to turn bolts , nuts or other hard-to-turn items.



2.- A pickaxe is a hand tool with a hard head attached perpendicular to the handle.



3.-A mallet is a type of hammer with a head made of softer materials than the steel normally used in hammerheads , so as to avoid damaging a delicate surface.






4.-A rasp is a woodworking tool used for shaping wood

5.-Scissors are hand operated cutting instruments consisting of a pair of metal blades.




6.-Pliers are hand tools, designed primarily for gripping objects by using leverage.








7.-A saw is a tool that uses a hard blade or wire with an abrasive edge to cut through softer materials



8.- A ruler is a instrument used in geometry,technical drawing and building to measure distances and to rule straight lines.





9.-A chisel is a tool with a characteristically shaped cutting edge.







10.- A screw it is a cylindrical element formed by a head of metal , who is in use for fixing a few pieces.

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