Starrett Pocket Level with Main Vial - Ideal for Machine Shop and Tool Room Use - 2-1/2" Length, Satin Nickel-Plated Finish, Hexagon Stock with Convex Ends - 135A
<div class="aplus"><p>The Starrett 135A pocket level is a 2-1/2" long spirit level with a single vial for determining horizontal plane and smooth, convex ends for fitting in a pocket. The vial is made of glass to resist scratching and provide clear readings, and has a sensitivity of 17 to 21 minutes. The level has a hexagonal brass body with a satin nickel-plated finish that resists corrosion. Levels are used in the building trades, engineering, surveying, and metalworking, among other applications.</p><p> Levels are instruments that are used to determine the true horizontal or vertical plane of a surface. The most common type of level is the spirit level, or bubble level. Spirit levels have a liquid-filled, bowed tube (also called a vial) with a bubble that moves when slight adjustments are made to the level. When the bubble settles between marked points on the vial, it indicates that a surface is horizontally or vertically straight. Levels can have one or more vials to determine the horizontal plane, the vertical plane, or various points between, such as a 45-degree angle, simultaneously. Some levels include a laser line indicator that projects a horizontal or vertical beam on a surface. Bullseye levels, or surface levels, are circular, flat-bottomed spirit levels that determine whether a surface plane is level. Machinists€ levels are made of metal and have surfaces designed specifically for rugged use in a machine shop or tool room. Levels can range from highly-complex and accurate machines, such as those used in the surveying and construction industry, to precision instruments used in carpentry and other building trades, to simple, pocket-sized devices for do-it-yourself projects.</p><p> The L.S. Starrett Company manufactures precision measuring tools, metrology and testing equipment, and saw blade products. The company, founded in 1880, is headquartered in Athol, MA. </p></div>