Features 【High Quality Material】Angle measuring tool is made of high quality carbon steel material with chrome-plated surface, which is not easy to rust, avoid glare and easy to observe. Adopting special process, it has accurate reading and long service life, which reduces the replacement cost. However, please pay attention to the tip when using 【High Accuracy】The measuring range of the bevel protractor is 0-320 degrees, equipped with a bevel edge extension blade and a fine-tuning roller knob. Accuracy up to 0.02, easy to operate. Suitable for standard protractor or T-bevel. The protractor and scale of the angle measuring tool are precision laser etched for clear and accurate readings and easy operation. 【Adjustable Protractor】Angle Measuring Ruler Tool is equipped with a bevelled edge extension blade, roller knob and fine adjustment device to fine tune the angle of the workpiece for accurate workpiece angles. It can be used to fix the angle, it has permanent dark colour markings and can be read clearly in any light. 【Application Tips】Universal bevelled angle protractor is used for measuring precise angles or angle measurements inside and outside the reader. Suitable for DIY Precision Angle Measuring Viewfinder Tool, not suitable for construction work, cabinet making and fine woodworking. Please understand before purchase 【Package Included】A box is included with the goniometer tool to protect the bevelled angle protractor. The goniometer tool includes 1 universal bevelling protractor and 1 box. Easy to store and carry, no worry about losing it. Descriptions: Universal bevel protractor is used to measure the precise angle of the inner and outer parts of the scribe or angle measuring. Measuring range is 0-320 degree, high accuracy of 0.02. And made of high quality carbon steel, practical and durable in use. Features: Universal bevel protractor is used to measure the precise angle of the inner and outer parts of the scribe or angle measuring. Furnished with a bevel edged extension blade, roller knob and fine adjustment. Measuring range is 0-320 degree. Made of high quality carbon steel, practical and durable in use. With high accuracy of 0.02, and easy to use Come with a box, so providing protection for the bevel protractor Specifications: Product model: 0-320 Material: carbon steel Measuring range: 0-320 degrees Measuring accuracy: 0.2 Weight: 526g Package included: 1 x Universal Bevel Protractor 1 x blue box Package List