Starrett® Machinist's Level, Non-Magnetic Precision Uncalibrated, Series: 98 Series, 0.005 in/ft Accuracy, 12 in Length, 2 Vials, Glass Vial, Single Plumb and Cross Test Vial, Cast Iron, Black/Silver.
Features
- The base of the levels features a groove running the length of the base, which provides a reliable seat for round work such as pipes or shafting
- Cross test vial enables simultaneous leveling in two directions
- The vials are adjustable to a positive setting and are housed in a satin finished brass tube with a friction-fit closing cover to prevent breakage
- Main level vials have graduations that are approximately 80-90 seconds or 0.005 in per foot (0.42 mm per meter)
- Cast iron base for durability and finished wood case for storage
- There are five, six, or seven lines on each side of the bubble, depending on the base length
- 2 level vials and 1 plumb vial
- Unmilled surface
- Brass frame material
- V-shaped groove along the base provides reliable seating when leveling round items
- Precision machined on the reference surface
- 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° angle, simultaneously
- Some levels include a laser line indicator that projects a horizontal or vertical beam on a surface
- Bulls eye 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 project
