Breadcrumb Home VCR D500i Dimple Grinder VCR D500i Dimple Grinder VCR D500i Dimple Grinder Dimpling thins the center of the TEM disk, reducing ion milling times while giving a higher quality specimen with a broader, near electron transparent area. The D500i can thin samples down to < 10 microns. Subscribe Want to keep up with the latest insights from CEMAS? Click here to sign up.