Need to check or calibrate your surface roughness tester? This INSIZE ISR-CS323 set has you covered. It includes 8 pure nickel specimens, each with different roughness values achieved by surface grinding.
You get Ra values from 1 to 125 μin and Rz from 11.8 to 625 μin—perfect for verifying your equipment or training your team on surface finish specs.
These specimens meet ISO 2632 standards and come with solid accuracy: ±20% to -25% for Ra under 4 μin, and ±12% to -17% for Ra over 4 μin. They’re rust-proof, durable, and ideal for labs, workshops, or quality control departments.
Use them to identify, specify, or demonstrate surface roughness symbols with confidence. A must-have for anyone in machining, manufacturing, or metrology.
