The Kreg Tool KHJD345 dowel jig is a compact joinery jig for drilling accurate dowel holes in woodworking projects. This is a dowel jig designed for drilling precise dowel joints in boards, panels, and edge-to-edge assemblies. Model Number: KHJD345. If you want tighter alignment than guess-and-drill methods, this jig gives you a more controlled way to place holes where they need to be.

What makes this setup useful is its flexibility. Based on the included components shown, the jig comes with 1/4 inch and 3/8 inch quick-change drill guides, along with matching drill bits and stop collars. That matters because those are two of the most common dowel sizes for cabinet parts, furniture work, shelving, and general shop projects. Instead of buying separate jigs or trying to adapt a one-size-fits-all guide, you can switch sizes and keep moving.

The jig body and removable guide blocks are built around repeatable positioning. The drill guide faces are laid out to help you align holes consistently across mating parts, which is the whole point of dowel joinery. When hole spacing drifts, parts do not pull together cleanly. A jig like this cuts down on that problem by giving the bit a fixed path and helping you register the tool off the workpiece instead of freehanding the layout.

For real shop use, that means cleaner panel glue-ups, more reliable edge joining, and better control when building small casework or repair parts. If you are replacing a biscuit joiner workflow, or just want a simple way to make strong hidden joints with a drill, a dowel jig is a practical option. It is especially helpful for woodworkers who want solid alignment without stepping up to a larger benchtop joinery system.

The included stop collars and setup hardware shown in the product images also matter more than they look. Depth control is a big part of making dowel joints work. Drill too shallow and the joint will not close. Drill too deep and alignment gets sloppy. Matching bits with dedicated collars make it easier to set repeatable depth for both sides of the joint.

This Kreg doweling jig makes the most sense for woodworkers, cabinet installers, furniture builders, and serious DIY users who want stronger joinery than screws alone and cleaner alignment than rough layout methods. If your work includes edge joints, face joints, or basic frame and panel assembly, this is the kind of tool that saves setup time and cuts down on rework.

A smart pick if you want cleaner dowel joinery without overcomplicating the setup

The Kreg Tool KHJD345 dowel jig gives you the parts that matter most for accurate drilling, quick size changes, and more predictable glue-ups.

• Who it's for: Woodworkers, cabinet builders, and serious DIY users making panels, shelves, boxes, and furniture parts.
• Why it stands out: The included 1/4 inch and 3/8 inch quick-change drill guides make it more adaptable than a single-size jig.
• Worth knowing: This is all about accurate drilling and alignment. Take a minute to test your depth on scrap and it will save you a lot more time during final assembly.

• What dowel sizes does this jig support? Based on the included quick-change guides shown, it supports 1/4 inch and 3/8 inch dowel joinery.
• Are drill bits included? Yes. The product images show matching 1/4 inch and 3/8 inch drill bits included with the jig.
• What kind of work is this best for? It is best suited for woodworking tasks that need accurate dowel hole placement, such as edge joining, panel assembly, and furniture or cabinet parts.