Features 1、ALUMINUM ALLOY: Made of high quality aluminum alloy material, more stable, corrosion resistant, wear resistant and durable 2、MULTIPLE SIZES: Different sizes of bushings are available for easy and convenient precise drilling for more accurate positioning without offset or voids 3、APPLICATION: Self centering woodworking dowel jig, suitable for making different wood dowel joints, positioning and punching, etc. 4、MORE CONVENIENT: This drill locator is suitable for making different dowel joints, practical and more convenient for woodworking 5、GREAT TOOL: This is a self centering doweling jig, which a great tool for furniture mills and woodworking hobbyists Specification Item Type: Self Centering Dowelling Jig Material: Aluminum Alloy Length: Approx. 12cm / 4-3/4in Height: Approx. 6.3cm / 2-1/2in Width: Approx. 64mm / 2.52in Extension Adjustable Bushings: Approx. 6mm / 1/4in, 8mm / 5/16in 10mm / 3/8in 2pcs Each Package List 1 x Wood Doweling Jig 6 x Bushing