What are Protractors?

Protractors are used to directly measure angular surfaces. The tools most commonly used are the simple protractor, the protractor head, and the universal bevel protractor.

Simple protractor. A simple protractor consist of a rectangular; head graduated un degrees along a semicircle with a blade pivoted on the center pin. By rotating the blade on the center pin, any angle from 0 to 180°can be set.

Protractor head. The protractor dead is one of several tools on the combination square. It has revoling turrets with direct-reading double graduations a full 0-180°in opposite directions. This permits direct reading of angles above or below the blade.

Universal bevel protractor. The universial bevel protractor consists of a round body with a fixed blade on which a graduated protractor dial rotates. The turret is xlotted to accommodate a 7 or 12�?180 or 300mm) nongraduated blade. The blade and dial may be rotated as a unit to any desired position and locked in place by means of the dial clamp nut. The blade may also be independently extended in either direction from the protractor.

 

--------------------------------------------------------

Buy Digital Calipers Online, Click here
Buy Special Calipers Online, Click here
Buy Vernier Calipers Online, Click here
Buy Dial Calipers Online, Click here
Buy Micrometers Online, Click here
Buy Depth Gauges Online, Click here
Buy Height Gauges Online, Click here
Buy Digital Indicators Online, Click here
Buy Dial Indicators Online, Click here
Buy Dial Caliper Gages, Click here
Digital Calipers Wholesale, Click here