Features 1、[Versatile Dowel Jig Kit] Easily complete three in one board splicing without the need for auxiliary boards, can achieve quick disassembly, assembly, and conversion between A and B boards. 2、[Precise Doweling] Self centering drill guide and adjustable right angle tool ensure accurate dowel joints and maximum joint strength. Steel sleeve ensures accurate alignment during drilling, perfectly positioning the tenon pin. 3、[Sturdy Construction] Crafted from aluminum alloy with nitrided hard tool steel drill sleeves, this kit offers excellent strength, wear resistance, and long lasting durability for woodworking projects. 4、[Multi Purpose] The adjustable drill guide can easily meet your drilling requirements. The clamping plate can securely fix the wood board. Suitable for making edge to edge, edge to surface, and edge to angle joints. 5、[Wide Application] Can be used for edge, surface, T shape, and L shape joints. Ideal for home repairs, handymen, and woodworking enthusiasts. Specification Item Type: Dowel Jig Kit Material: 6061 Aluminum Alloy Processing Thickness: Approx. 10-180mm / 0.39-7.09in Side Hole Diameter: Approx. 15mm / 0.59in Front Hole Diameter: Approx. 6mm/0.24in, 8mm/0.31in, 10mm/0.39in Slider Stroke: Approx. 5-90mm / 0.20-3.54in Side Hole Stroke: Approx. 23-43mm / 0.91-1.69in Application: 3 in 1, 4 in 1, Circular Wood Dowel Hole Positioning Package List 1 x Quick Release Clamp 2 x Locator 1 x Extension Rod 3 x Metal Shim 4 x Drill Bits 3 x 10mm Drill Sleeves 3 x 6mm Drill Sleeves 1 x 5mm Drill Sleeve 3 x Wrenches 2 Pack x Accessories 1 x Storage Box 1 x Instruction Manual