WRINGKIT Micrometer Stand, Precision Micrometer Holder Stand Base, Adjustable Cast Iron Base Inspection Fixture Machinist for Micrometers Up to 4" Approx Info: The maximum opening distance of the fixture is 0.8 inch, weight: 2.2 lbs. Reliable Construction: The main body is made of cast iron, durable and corrosion-resistant. Anti-slip Bottom: Design with three-point pad at the bottom of the fixture to avoid damage to the instrument, provides maximum stability and prevent the micrometer from scratching. Large Clamp Knobs: With large and user-friendly clamp knobs, WRINGKIT micrometer stand allows for easy and hassle-free adjustments, enhancing convenience during use. Widely Application: Compatible with a range of micrometers up to 4 inches, making it available for engineers, machinists and anyone else who needs accurate measurements.