Unparalleled versatility
1.Angle measurement and setting: The reference plane of the ruler head can be accurately set and locked at 90 ° right angles and 45 ° oblique angles, meeting the vast majority of cutting and assembly needs.
2.Precision marking tool: The sharp edge of the steel ruler can be used as a marking gauge, and with the ruler head, it is easy to draw parallel lines or repeat marks.
3.Depth and height measurement: The ruler body can be used separately as a depth or height gauge to measure the size of grooves or steps.

Usage tips and precautions
1.Ensure that the reference surface is in perfect fit: In any measurement, it is essential to ensure that the reference surface of the ruler is completely and tightly aligned with the reference edge of the workpiece, as any gaps can cause errors.
2.Locking force: When tightening the thumb knob, the force should be moderate to ensure that the steel ruler or level will not slide, avoiding excessive force that may damage the threads.
3.Reading disparity: When reading the scale, the line of sight should be perpendicular to the scale line to reduce disparity errors.
4.Maintenance: Clean the tools after use and occasionally add a small amount of light lubricating oil to the moving parts (such as knob threads) to maintain smoothness. Store in a dry place to avoid dropping.