labwork 6 x 6 Inch Precision Frame Spirit Level Accuracy 0.0002 Inch with Wooden Box Fit for Machinery Tool

Size: 6 x 6 inch(150x150mm); accuracy: 0.0002/10 inch(0.02mm/m) Quality matetrial: Made of premium carbon steel, high grade and durable Portable Type: With wooden case, easy to store and carry Application: It is mainly used to check the straightness of the guideways of various machine tools and other equipment, the correctness of the horizontal and vertical positions installed, etc Maintenance: After use, rust-proof treatment should be carried out. When placed, attention should be paid to shock proof and moisture proof