Features: brand new and high quality CONTINUOUS-GAUGE. This roller contact point features a small, hardened roller, for continuous gaging of moving material where the material movement is at a slow speed. AVAILABLE FOR. Available for most dial indicator, dial gauge tools, dial indicator height gauge depth gauge, etc inter-changeable tool. BUILT-TO-LAST. High quality stainless steel ensures good durability. Sturdy, anti-rust, easy to use. METRIC TYPE. The roller contact point is with 10 mm (0.39'') diameter wheel, and check nut (m25 thread shank) for positioning the contact on the indicator. SMOOTH ROLLING. Suitable for use on a moving workpiece surface, or where the workpiece needs to slide from the side. It rolls smoothly and is adjustable to roll in the correct direction to match the dial indicator readout. Specifications: Color: Silver Thread Type: m25 Thread Diameter: Approx. 10mm/0.93in Material: Stainless Steel Weight: Approx. 70g Package Includes: 1 Pc Roller Contact Point note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!