Built from speed steel for long service life: these gauges resist wear and hold their shape under repeated use, so they remain reliable for routine measurement and inspection tasks. Wide size range for greater versatility: available in sizes from 5 mm to 100 mm to cover a broad set of calibration, inspection, and setup needs in workshops and laboratories. Ready to use with manufacturer's calibration included: each set ships with the manufacturer's calibration, giving you confidence in accuracy right out of the box. Engineered for reliable accuracy at standard reference temperature: manufactured under controlled conditions to achieve performance when used at 68°F (20°C). Key benefits — why you need these gauges Saves time: broad size coverage and factory calibration minimize the need for additional adjustments before use. Reduces rework and scrap: durable material and stable dimensions make measurements consistent, helping you catch deviations early. Fits existing tooling workflows: designed for standard calibration and inspection processes common to machine shops and labs. Important specifications Material: speed steel Size range: 5 mm to 100 mm Calibration: manufacturer's calibration included Reference temperature for accuracy: 68°F (20°C) Typical applications Machine setup: check and set dimensions on fixtures, jigs, and tooling during machining operations. Quality inspection: measure and verify part dimensions during incoming inspection or final quality checks in manufacturing. Laboratory calibration and verification: use as reference gauges for calibrating inspection instruments and verifying measurement fixtures. Compatibility and use tips Use in controlledtemperature environments to achieve the stated accuracy (68°F / 20°C). Store and handle gauges carefully to preserve calibration and surface condition; avoid impacts and corrosive exposure. Suitable for professional workshop and laboratory use where durable, factorycalibrated measurement references are required.