High-quality stainless steel roller contact tip and roller assembly for dial indicators and digital displays Key benefits Durable construction: Made from high-quality stainless steel for long-lasting rollers and contact tip performance under repeated use. Accurate, repeatable readings: Smoothly adjustable rollers couple to the dial gauge to deliver precise, consistent measurements and reduce readout variability. Protects the measured surface: Non-marring probe design prevents scratching or damaging rims and other contact surfaces, preserving parts and the continuity of the indicator. Broad compatibility: Works with most electronic/digital displays and dial indicators, making it a versatile accessory for many inspection setups. What this solves Reduces measurement error caused by slipping or rough contact by using smooth-rolling contact points. Prevents cosmetic and functional damage to precision parts during inspection with a non-abrasive probe. Extends the service life of the indicator assembly through corrosion-resistant stainless steel components. Features and performance Material: High-grade stainless steel for corrosion resistance and dimensional stability. Function: Roller assembly adjusts smoothly to the dial gauge to ensure accurate contact and reliable readings. Compatibility: Designed to interface with the majority of dial indicators and digital indicator heads used in workshops and inspection benches. Typical applications Wheel and rim runout checks: Measure lateral and radial runout on bicycle, motorcycle, and automotive wheels without scratching the rim surface. Rotating parts inspection: Verify runout on brake rotors, pulleys, shafts, and flywheels during maintenance or rebuilds. Precision shop and QC: Use with bench stands and magnetic bases to perform roundness and alignment checks in machining and quality-control workflows. Usage notes Mount to a standard indicator holder or stand and align the roller to the measurement surface for best results. Keep contact surfaces clean to maintain measurement accuracy and prevent contamination. Compatible with most electronic/digital displays and dial indicators for flexible use in inspection, maintenance, and machining environments.