Features: Delicate locaters for electric grinder, drillers and many rotary Tool.This is excellent Locators for electric grinder for better works. Turn on grinder, keep it rotating into the Locators, grinder can punch accurately.Great for many electric grinder rotary drill machine. This drill Locators is selected from Plastic+High Speed Steel.You can rotate the card directly to the electric grinding in the holder for fixation. It have different depth readings (3/4inch 1/2inch, 1/4inch) where you can adjust by sliding the shaft up and down, change depth of cutter by turning the shaft and locking it tight with the screw attachment on the side. Convenient to use with a up and down scale rulers.It can also be used with drillers, polishing and rotary Tool. Specifications: Component:Plastic+High Speed Steel Size:Approx.67x60mm/2.64x2.36inch Package Includes: 11Pcs Woodworking Locators note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.