Stainless Steel Construction Made of stainless steel, this M5 roller contact point delivers durable, long-lasting performance in diverse test environments. Adjustable Wheels Casters allow quick, easy adjustments to achieve precise readings with minimal setup. Protective Design Rim-protective features help prevent scratches on the rim during testing, safeguarding both parts and indicators. Wide Compatibility Designed for use with electronic and digital indicators as well as dial indicators, suitable for a range of applications including slow-moving materials. 2-3 practical use scenarios - Calibration lab: Use with digital indicators to verify runout and ensure consistent measurements on slow-moving shafts. - Production QA: Pair with dial indicators to check part alignment without marring surfaces during inspection. - R&D testing: Switch between electronic/digital and dial indicators on the same setup to compare readings while protecting the tested surface.