Sixhotyiswe ngezixhobo zokuhlola ezikumgangatho ophezulu ezifana noomatshini wokulinganisa uBrown & Sharpe olungelelanisa ezintathu, uColin Begg P100/P65/P26 iziko lokulinganisa, isixhobo saseJamani iMarl cylindricity, umhloli wokurhabaxa waseJapan, iProfayili yeOptical, iprojekti, umatshini wokulinganisa ubude njl.njl. kuhlolwa ngokuchanekileyo nangokupheleleyo .