The Kreg Easy-Set Stop Collar & Material Thickness Gauge/Hex Wrench Kit, model KPHA330, is a pocket-hole jig accessory kit built for setting drill-bit depth and checking stock thickness when using Kreg joinery systems. This is a pocket-hole jig accessory kit designed for quick pocket-hole drilling setup. If you already use a Kreg pocket-hole jig and need to replace worn setup parts or keep an extra set at the bench, this kit solves a small but important problem: getting repeatable pocket holes without wasting time on setup.

The main value here is speed and consistency. The Easy-Set stop collar uses a viewing window that aligns with the etched markings on the Kreg Easy-Set pocket-hole drill bit. In practical terms, that means you can set bit depth for common material sizes without second-guessing where the collar needs to land. On a job where you're moving between 1/2 inch face frames, 3/4 inch cabinet parts, and 1-1/2 inch stock, that faster setup helps keep your joinery accurate and your workflow moving.

The included material thickness gauge does more than just measure. It is marked for 1/2 inch, 3/4 inch, and 1-1/2 inch material, and it has a built-in hex wrench for tightening the stop collar. That combination matters because it keeps two setup steps in one compact tool. Instead of digging around for a separate wrench or trying to eyeball material thickness, you can check the stock and lock in the collar with the same piece.

Kreg built this kit as the same style of setup hardware included with its 300-Series pocket-hole jigs, so it makes sense as a direct replacement if the original parts wandered off or got beat up in the shop. The stop collar also fits other standard 3/8 inch diameter Kreg pocket-hole drill bits, which gives it broader usefulness beyond one specific jig. For users with multiple Kreg setups, that kind of carryover is what makes an accessory actually worth keeping around.

Material construction is listed as steel and polypropylene. That is a practical mix for a kit like this. The collar needs the durability and clamping strength of steel, while the gauge/wrench is made to be handled often, tossed in a case, and used for quick setup without adding unnecessary bulk. This is not a flashy accessory, but it is the kind of shop part that makes the whole pocket-hole drilling process less annoying.

Compatibility is another strong point. The Kreg Easy-Set Stop Collar & Material Thickness Gauge/Hex Wrench Kit is made for Kreg Pocket-Hole Jigs, including direct replacement use with the Pocket-Hole Jig 320 and 310. It also works with the K5, K4, K3, R3, Mini, and Foreman DB210, excluding Micro and XL systems. That makes it a smart fit for woodworkers, cabinet installers, trim carpenters, and DIY users who already own standard Kreg pocket-hole equipment and want one reliable setup kit that covers the common material range from 1/2 inch to 1-1/2 inch.

Kreg Easy-Set Stop Collar & Material Thickness Gauge/Hex Wrench Kit Keeps Setup Simple

This is one of those small Kreg accessories that earns its keep every time you need clean, repeatable pocket holes without messing around on scrap first.

• Who it's for: Anyone running a standard Kreg pocket-hole jig for cabinets, trim work, face frames, or general shop projects.
• Why it stands out: The collar and gauge are built around the material sizes people actually use, and the built-in hex wrench keeps setup parts from multiplying all over your bench.
• Worth knowing: It works with standard Kreg systems and 3/8 inch Kreg pocket-hole drill bits, but it is not for Micro or XL setups.

• What material thicknesses does this kit support? It is designed for 1/2 inch, 3/4 inch, and 1-1/2 inch materials, with an overall listed material capacity of 1/2 inch to 1-1/2 inch.
• Does the stop collar fit all Kreg pocket-hole drill bits? It fits standard 3/8 inch diameter Kreg pocket-hole drill bits.
• Which Kreg jigs is it compatible with? It is a direct replacement for Kreg Pocket-Hole Jig 320 and 310, and it also works with K5, K4, K3, R3, Mini, and Foreman DB210.
• Will it work with Kreg Micro or XL systems? No. The listed compatibility specifically excludes Micro and XL.