GB-A Linear Scales Measuring Length 400mm(16") Maximum Travel 430mm(16.9") * Compact design for a space saving installation. * Excellent durability against workshop conditions. Resistant to oil, dirt, shock and vibration. * Accuracy: (5+ML/1000)µm * Resolution: 0.5µm * Simple design conducive to long life. * Measuring Length's from 2" to 86".