All instruments purchased will be accompanied with 50% discount for the current calibration certificate traceable to Australian - National Measurement Laboratories(NMI) regardless of quantity purchased
Accuracy exceeds the requirements of ISO6789, +/-6% and they are suppied with a 1/4" hexagon bit holder that can be removed and replaced with widely available screwdriver blades.
These models are pre-set to prevent unauthorised or accidental adjustment.