Precision Double Bridges is an instrument used for measurement of electrical conductivity of conductors and calibration of low resistance instruments. It is also designed for testing large-capacity shunts and measuring lead resistance per unit length of bar or wire conductors. The feature includes laboratory-grade accuracy ±0.03 to ±0.05%, perfect guard system, built-in standard resistors and bar resistor measurement.

Precision Drilling Machine is used for drilling holes up to 13mm diameter. A flat endless belt drives the spindle over stepped pulleys. The upper portion of the cover can be raised to facilitate changing over the belt. The method of displacement employed prevents the head from descending under the weight. Improved low speed spindle control made it easier to calibrate the machine for new production runs.