This 84pc set includes all the tools and accessories needed to create precise dowel joints, including THREE brad point drill bits, SIX dowel centres, THREE drill stop collars, a hex key, and a drill guide. The set consists of three of the most common dowel sizes. Create strong and accurate joints in 6mm, 8mm, and 10mm sizes, perfect for a wide range of woodworking projects. The hand held dowel jig is adjustable, allowing for use with wood of different thicknesses and also ensuring consistent alignment for professional quality joints. Designed to achieve durable joints with precise and consistent alignment, therefore reducing the risk of misaligned joints and enhancing the overall strength of your work.