Power Tools.doc

POWER TOOLS -

tools that are powered by forces other than human muscles

Power Saw  Radial Arm Saw - considered as a stationary power tools - consists of a motor-driven saw blade that is hung on arm over a table - used mostly for cross-cutting dimension lumber -

Table Saw consists of a blade mounted on an electric motor beneath a tablelike surface used for cutting large sheets of wood & plywood, for ripping lumber, and cutting of wood at an angle

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Portable Circular Saw used to cut materials that are difficult to cut with stationary tools

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Power Miter Saw used to cut various angles in wood Saber Saw used to cut holes in floors and roofs

Power Drills & Screwdrivers  Power Drill - used for drilling holes in wood, metal, and concrete - some have reversible motors so that they can turn forward and backward  -

Power Screwdriver also known as screwgun used to install and remove screws has a special screwdriver bit that fits into the head of the screw

Power Hammers  Pneumatic Hammers - also known as jackhammers - used to break up concrete or asphalt paving  -

Rotary Hammer used to drill holes in concrete operates with both rotating and reciprocating action

Power Hammers  Nailers - also known as nail guns - can fasten together materials by aligning the boards and pulling the trigger of the nailer -

Stud Driver powered by a 22-caliber cartridge that contains gunpowder can fasten two materials together by pressing the gun against the parts to be fasten and pulling of the trigger can drive ½” to 3” long pins into wood, steel, or concrete

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Staplers similar to nailers, but are loaded with U-shaped staples instead of nails primarily used to staple insulation and to fasten roof shingles

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EQUIPMENT - refers to large, complex tools and machines Surveying Equipment - used to measure land size and elevation  -

Transit measures horizontal and vertical angles commonly used to measure relative land elevation

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Construction Laser A versatile equipment that can be used as a level or as an alignment tool

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Water Pump a portable equipment that is used to pump water out of holes in the ground so that work can be done

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Concrete Pump used to move concrete from the concrete mixer to the concrete form efficiently it has a pump mounted on a truck and a boom that holds and directs a hose through which a concrete is pumped

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HEAVY EQUIPMENTS Cranes - machines that lift large and heavy loads - can also move loads horizontally along their radius - parts of the cranes includes: hoist – the mechanism that winds up the cable and does the lifting cable – used to attach the object to be lifted to the hoist boom – the long arm of the crane that directs the cable -

Crawler Crane a crane that is mounted on metal treads so that it can move over rough terrain at a construction site

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Tower Crane also called as climbing crane a crane with a built-in jack that raises the crane from floor to floor as the building is constructed used in the construction of tall buildings usually positioned in the elevator shaft

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Excavators - one of the most common types of construction equipment - machines that is used for digging - it scoops up earth from one place and deposits it in another -

Backhoe a type of excavator that is used for general digging usually mounted on either a crawler or a truck frame and with a bucket designed to dig toward the machine

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Trencher used to dig trenches, or long, narrow ditches, for pipelines and cables

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Front-end Loaders - machine with large scoops used for shoveling - also called as scoop loaders or tractor shovels Bulldozers - a tractor equipped with a front-mounted pushing blade - one of the most basic and versatile pieces of construction equipment - can move earth over a short distances and can clear land of bushes and trees Highway Construction Equipment  Scraper - used for loading, hauling, and dumping soil over medium to long distances -

Grader used to grade, or level, the ground used to prepare roadways and parking lots for paving

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Compactor also called as roller used to compact the soil of a roadway just before the road is paved

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Pavers used to place, spread, and finish concrete or asphalt paving materials

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