Features:

• High degree of measuring accuracy and reliability:
  The measuring slide of the tester moves smoothly on a rolling guide way, which consists of a series of high precision steel balls and a pair of carefully lapped alloy steel guide, runs freely, frictionless and wearless.
• Convenient,practical and cheap for use:
  Simple and reasonable in construction,convenient in operation and maintenance.Less demand for temperature,it is specially available for using in workshop.