Product description: It has 27 angle indexing blocks and 5 degree step, the dial allows 90 to 30 degree angle adjustment, and the protractor head has 0, 10, 22.5, 30, 45, 60, 67.5 and 90 degree (left and right) positive blocks. When you want to cut more complex angles, the instrument will adjust the dial to the precise angle as an adjustable scale This woodworking tool is made of aluminum alloy. The length gauge head made of solid steel is accurately machined to be at right angles to the rod and workbench. Laser engraving scale marking technology is wear-resistant and can ensure accuracy. It can be used for table saws, band saws, router tables, etc. Both sides are adjustable at 60 degrees, which is very suitable for crosscutting wood at a specific angle. Once the gauge is set, the precise cross cutting angle will enable you to better control the workpiece being cut. The fence is equipped with a turnover stop, which can be easily cut repeatedly. 3/4 inch (19mm) miter gauge groove is suitable for most standard 3/4 inch table saw grooves (measure the groove on the table saw to ensure accurate installation); The sliding rod is provided with a lock washer, which is tightly fitted in the rail through a matching groove; Just slide the turning block to the exact position required and lock it in place to start. Lightweight design, with durable laser-cut aluminum structure, large handle, universal fence mounting bracket, rotary locking mechanism, removable plate that can make the miter gauge work with T-shaped groove and non-T-shaped groove miter groove, and adjustable expansion disk, can eliminate all side gaps of the rod and create a perfect fit. Suitable for most contractor style full-size saws or tools with standard bevel grooves (3/4 “wide x 3/8″ deep), with or without T-shaped grooves, making them popular brands of table saws, band saws, router tables, discs and belt sanders. Please note that small saws or tools with 5/8 bevel grooves cannot be used. Product specification: Material: aluminum Size: 51 20 12CM/20.07 7.87 4.72 inches Color: silver Package content: 1 Precision miter gauge Note: Please allow 1-5mm error due to manual measurement. The color of the items shown in the picture may be slightly different on your computer monitor because the monitor is calibrated differently. There is a time zone difference, but we will do our best to quickly response to your questions. We always send the item to the address you give us on Payoneer to ensure the security of the item. All pictures are for illustration purpose only and Colours may vary slightly. We will cover the cost if sending replacement/repaired items.