1、SELF CENTERING FUNCTION: This positioning centering jig has perfect self centering function, which can be used as a self centering positioning pin fixture for drilling or as a center scriber for marking. 2、ALUMINUM ALLOY MATERIAL: Made of premium aluminum alloy material, the dowel jig has strong hardness, wear resistance, and corrosion resistance, while the guide rail is made of heavy duty steel, which is more durable and wear resistant. 3、EASY TO USE: Comes with a small and compact size, easy to install and carry for convenient use. 4、FINE WORKMANSHIP: Well crafted with fine and smoothly appearance, this dowel jig has a comfortable feel and will not scratch your hands. 5、WIDE APPLICATION: The dowel jig is a practical and reliable tool, which can be applied for DIY lumber, drilling and other woodworking activities, this centering jig is an ideal Father's Day gift or birthday gift for woodworking enthusiasts.