Features Woodworking Angle Marking & Measuring Tool: This multifunctional folding depth measuring ruler combines multiple functions such as depth measurement, angle marking, and horizontal calibration to help you easily complete various measurement and marking tasks Multi-Angle Marking: Supports 15/30/45/60/90 adjustments with a rotatable Knob for precise positioning. Fixed Point Marking: Equipped with a fixed-point marking function, the cabinet drawer door hole drilling positioning ruler facilitates precise marking on wooden boards.Built in high-precision horizontal bubble, accurate-measurement results, convenient leveling. Horizontal bubbles are highly transparent and easy to observe Rotatable Knob: The rotarys knob design facilitates adjusting the angle and position of the ruler, and is fixed at the desired angle and position.Equipped with a limit marking function to ensure that the ruler does not slide during marking, maintaining the accuracy of the marking Compact and Easy to Carry: It is lightweight and compact, easy to carry, and can be used anytime, anywhere.This drilling positioning ruler marking protractor tool is an ideal tool for carpenters, DIY enthusiasts, and professionals Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: Plastic + Iron Applicable Angles: 15/30/45/60 Size: 167mm x 14mm x 37mm