Adjustable 300mm Ruler with Built-in Angle Finder & Protractor – Woodworking Combo Tool

Precision Measurement Tool

This adjustable 300 mm ruler is crafted for accuracy and versatility, making it an essential tool for woodworking, metalworking, and technical drawing. Its fine scale markings and adjustable slider provide precise and consistent measurements for both professional and DIY use.

Durable Construction

Made from high-quality stainless steel or aluminum alloy (depending on the model), this ruler offers excellent resistance to rust, wear, and deformation. Its sturdy structure ensures reliable use even in rugged workshop environments.

Sliding and Locking Mechanism

Equipped with a smooth sliding feature and a secure locking knob, the ruler allows quick length adjustments and angle settings. Once fixed, it stays in place, minimizing measurement errors and enhancing work efficiency.

Multipurpose Functionality

Designed for more than just linear measurement, this ruler also functions as an angle finder and marking gauge. Whether you’re marking 45° miters or measuring long lines, it adapts to a wide range of layout and scribing tasks.

Easy to Read and Use

Laser-engraved metric (and optionally imperial) scales ensure clear visibility and long-lasting readability. The ergonomic design and smooth edges provide comfort during prolonged use, reducing hand fatigue.

Ideal for Professionals and Hobbyists

Suitable for carpenters, engineers, architects, and craft enthusiasts, this 300 mm adjustable ruler is compact, lightweight, and easy to store. It brings accuracy and convenience to every measuring task, from furniture making to blueprint layouts.