The Starrett 98-6 precision machinists’ level is six inches long and has a graduation (also known as sensitivity) of 0.42 mm/m, or 80-90 seconds. The extent has two vials to offer accurate results. The primary vial is ground and graduated with five lines and adjustable to a positive setting. A second cross-test vial allows measurements from two directions directly. An involute groove runs all the length of The extent base, and provides a reliable seat for round work, such as leveling pipes or shafting. The bottom is product of machined cast iron for increased durability, and the glass vial is housed in a brass tube with a friction-fit closing, to forestall breakage. The extent is warrantied for one year.
|Dimensions||3 x 6 x 1-1/2 inches (H x W x D)|
|Graduation||0.42 mm/m; 80-90 seconds|
|Number of vials||2, level|
|Vial material||ground glass|
H is height, the vertical distance from the lowest to perfect point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.
Levels are instruments which are used to resolve the real horizontal or vertical plane of a surface. The commonest form of level is the spirit level, or bubble level. Spirit levels have a liquid-filled, bowed tube (also known as a vial) with a bubble that moves when slight adjustments are made to The extent. When the bubble settles between marked points at the vial, it indicates that a surface is horizontally or vertically straight. Levels may have a number of vials to resolve the horizontal plane, the vertical plane, or more than a few points between, such as a 45-degree angle, concurrently. 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 resolve whether a surface plane is level. Machinists’ levels are product 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 the ones used within the surveying and construction industry, to precision instruments utilized in carpentry and other building trades, to simple, pocket-sized devices for do-it-yourself projects.
The L.S. Starrett Company manufactures precision measuring tools, metrology and testing equipment, and saw blade products. The corporate used to be founded in 1880 and is headquartered in Athol, MA.
The Starrett 6-Inch Precision Machinist’s Level has ground and graduated main vials and features a cross test vial. The bottom of The extent features an involute groove running the length of The bottom that gives a reliable seat for round work. The 6-inch main level vials have gradations which are approximately 80-90 seconds or .005 inches per foot. The extent comes backed with a 1-year manufacturer’s warranty.
Precision machinists’ level with a graduation of 0.42 mm/m, or 80-90 seconds
Ground glass main vial is graduated, and adjustable to a positive setting, for accurate results
Cross-test vial enables simultaneous leveling in two directions for precise measurements
Involute groove along The bottom provides reliable seating when leveling round items
Cast iron base for increased durability
Accurate and reliable machinist’s level
Cross test vial allows simultaneous leveling in both directions
Ground and gradated main vial
Created from high quality seasoned cast iron
1-year manufacturer’s warranty