6.7-inch Self-Centering Dowel Jig Kit with Adjustable Width Dowel Jig Kit, Woodworking Tools for Straight Holes, Biscuit Joinery Set

【Wider Clamping Range】The clamping range of our dowel jig is from 0.4" to 6.7", which is easily adjustable and can be used to clamp boards of different thicknesses. It's perfect for making shelves, cabinets, tables, chairs, repairing doors, and more.

【Wide Application】There are 4 drill guide holes along the top of the dowel jig. Two holes accept threaded bushings that can be replaced with 1/4", 3/8", and 5/16" sizes. The other two holes directly accept 7/16" and 1/2" drill bits. Their inner walls are smooth, so there's no need to use a drill sleeve, and you can drill directly with a drill bit. This makes it a versatile tool for a variety of DIY woodworking projects.

【Precisely Positioned Drilling】The woodworking dowel jig is precision CNC machined. When you turn the middle bolt, the aluminum jig on both sides tightens simultaneously to automate center positioning, and the center error is controlled. 0.002". Positioning is more precise without leaving any gaps, allowing for easy and accurate drilling. 【Solid and Durable】The brackets on both sides of the self-centering stud jig are made of industrial-grade aluminum alloy, and the surface is anodized to prevent rust and is strong and durable. The center of the drill guide is made of steel, which has been heat-treated for greater strength and resistance to deformation. This will ensure a longer service life.