Thumbscrew drives (travel from 6,5mm &up to 50 mm), Micrometer drives (10 um increment mark), quickinstall thumbscrew drives (8 mm of travel With 1 um resolution), compact differential micrometers (adjustment travel range: 13 and 25 mm, quickinstall differential micrometers (8 mm of travel with 50 nm resolution). If you need further information, don't hesitate to contact us, please.