Description: This is multi-functional tool which is made of aluminum alloy and stainless steel. It is widely used, easy to operate and has high precision. It is also a good helper for masons. Features: brand new and high quality Made of high quality aluminum alloy material, wear-resistant, has a long service life, high hardness and strength, durability. Not only a punch locator with 3 sizes of hole diameters, but also a measuring ruler. Easy to use and install, compact and high precision. The angle can be adjusted to meet the needs of different trepanning and lineation. The clamp is adjustable with rotating knob to fit different thickness. Has a double-scale design in centimeters and inches, which is convenient and clear to use, does not need to be converted. Upgraded all-metal knobs sturdy and durable than plastic one. Laser etched numbermarking that won'for t wipe away. Can be used at anywhere. It can be used in a variety of environments, laying floor tiles, civil engineering, hole positioning, etc. A good helper for masons, it can improve efficiency, save for time and effort. Instructions: 1. First, placing the tool onto any surface and adjust the six rulers into your desired shape. 2. Next, tighten the high-grade metal screws to secure your angle and use this desired angle as a reusable stencil for endless applications. 3. Finally, once completed with your project, loosen the screws and put the ruler into your toolbox. Specification: Material: Aluminum Alloy Color: black Diameter of the hole: 25mm, 40mm, 45mm Range of ruler: 0-300mm(0-11.8in) Double top ruler length: 455mm(17.91in) Horizontal ruler length: 360mm(14.17in) Quantity: 1 pc Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Multifunctional Ruler(other accessories demo in the picture is not included.)