1、Aluminum Alloy + High Speed Steel: The positioner made of high quality aluminum alloy and high speed steel is wear resistant and corrosion resistant, and can be used for many years. 2、Variable Hollow Nuts: The positioner is equipped with a variety of hollow nuts, which are easy to replace and meet the various needs of users. 3、Titanium Plated Drill Bit: This positioner has a titanium plated high speed steel drill bit, which is highly efficient and durable. 4、Positioning and Punching: The locator can adapt to the center position of the wooden board. After punching, press the dowel to join the two wooden boards. The angle of 90° can be used to position and drill the wooden stick and the 90 degree wooden block. 5、More Convenient Operation: To make your operation more convenient, this positioner is fully adapted to various sizes and small DIY projects.