The PTR 30 series is composed of drilling machines machine guard developed by TECNO PIU' SRL. They are equipped with a rear protection and shield with hinge which is equipped with an integrated microswitch. These machines delivers protection to the operator against direct contact. Features of this product include rotating components of the spindle, projection of shavings and lubricant coolant. The models from this series are consisting of a microswitch integrated in the hinge of the shield.