Starrett 50446 Machinist Precision Level 18 in Cast Iron

Product Description

The STARRETT 50446 is a cast iron machinist precision level designed for accurate leveling and alignment work on machine tools, surface plates, and precision equipment. The level ships at 18 inches in length and features two horizontal vials, including a ground and graduated main vial. Graduation sensitivity is 0.005 inches per 10 inches on the main vial and 0.050 inches per 10 inches on the secondary vial, making it suitable for high-tolerance setup work. At 7.125 pounds, the cast iron body provides the mass and stability required for reliable readings on metal surfaces. This tool is used primarily by machinists, millwrights, and precision equipment technicians.

The STARRETT 50446 is suited for leveling lathes, mills, grinders, and other machine tools where precise horizontal alignment is critical. It performs in both shop floor and maintenance environments where repeatable, high-accuracy leveling is required during installation, alignment, or periodic calibration of machinery. The two-vial configuration allows the technician to check level in a single setup without repositioning the tool.

Key Features

• Ground and graduated main vial for precise, readable sensitivity readings
• Two horizontal vials for dual-axis reference in a single placement
• 0.005 inches per 10 inches main vial sensitivity for high-tolerance applications
• 0.050 inches per 10 inches secondary vial sensitivity for general reference
• Cast iron construction provides mass and surface stability on metal machinery
• 18-inch working length covers wide machine beds and surfaces

Compatibility

Designed as an OEM-style precision machinist level suited for use on lathes, milling machines, surface plates, and other machine tool surfaces requiring high-accuracy horizontal alignment.

Installation Notes

Machinist levels of this type are set and read by millwrights, machinists, and alignment technicians during machine installation or scheduled maintenance. Clean the reference surface and the base of the level thoroughly before use to prevent debris from introducing error. No power disconnection is required for level use, but machinery being aligned should be fully de-energized and locked out per applicable lockout/tagout procedures before any mechanical adjustments are made. Handle cast iron precision instruments carefully to avoid chipping the ground surfaces, which would affect reading accuracy.