Dowel Jig Upgrade Kit, Kreg, 1/2 in Guide Block

Take your joinery further with the Kreg ½″ Dowel Jig Upgrade Kit, a powerful add-on that expands the capabilities of your Kreg Dowel Jig Kit (sold separately). This kit opens up the ability to create ½″ dowel joints, giving you added strength and design flexibility for larger builds, furniture pieces, and cabinetry.

Engineered with the same attention to detail and ease of use as the base jig, the upgrade includes a precision 1/2" drill guide block, matching alignment pin, 1/2" drill bit with stop collar, and a dowel sample pack to help you get started right away. Like the ¼″ and ⅜″ guides included in the full kit, this upgrade maintains perfect alignment and consistent depth for rock-solid results.

Whether you're stepping up to more robust joinery or just want to extend your creative possibilities, this kit helps you build bigger, stronger, and smarter — all with the confidence that comes from a tool built to support your craft.

• Adds ½" doweling capability to your Kreg Dowel Jig Kit
• Includes ½" drill guide block with lifetime drill guide warranty
• Matching drill bit with stop collar ensures clean, consistent depth
• Alignment pin for flexible placement
• Includes ½" dowel pin sample pack