6 X 1-1/2 X 6 Precision Frame Spirit Level 4901-0077 Accuracy 0.0002 Inch with Woode Box

Product Details Size: 6 x 1-1/2 x 6 Accuracy: 0.0002 /10 Squareness: +/- 0.0005 Parallelism: +/- 0.0005 Material: Cast iron material includes 2 prismatic and 2 flat sides along with an insulating handle Design: The large bubble design has accurate measurement stable performance and high sensitivity Purpose: Precision frame spirit levell is mainly used to test the flatness of various machine tools and other equipment guide rails according to the accuracy of the horizontal position and vertical position of the installation and can test the small dip angle Precision Frame Spirit Level Applicability: For some equipment the level requirements are guaranteed by verticality such as column processing or vertical processing surface equipment the level of this equipment needs to be measured with a frame level Note: 1. When measuring make the working face of the level close to the measured surface and read after the bubble is completely stationary 2. In order to avoid the measurement error caused by the inaccurate zero position of the level the zero position of the level must be proofread or adjusted before use 3. The temperature change will cause errors in the measurement and the inspection or use must be isolated from the heat source and wind source 4. If the humidity of the environment is different from that of the storage environment it should be stable in the environment for 3 hours before use