The Kreg Easy-Set Drill Bit with Stop Collar & Gauge/Hex Wrench, Model KPHA308, is a replacement and add-on accessory set for Kreg pocket-hole jigs. This is a pocket-hole drill bit accessory kit designed for drilling pocket holes in common woodworking material thicknesses. If you want a second setup ready to go, or you are replacing worn parts from your jig, this kit gives you the stepped drill bit, matching stop collar, and thickness gauge/hex wrench in one package.

What matters here is setup speed. The stepped drill bit has easy-set etched markings for 1/2 inch, 3/4 inch, and 1-1/2 inch material, and the stop collar window is made to align with those markings. That means less fiddling with measurements and fewer chances to set the bit wrong. On pocket-hole jigs, bad setup shows up fast as weak joints, blowout, or screw tips poking through. This setup is meant to keep that from happening.

The bit works with material from 1/2 inch to 1-1/2 inch thick, which covers a lot of real shop and jobsite work: cabinet parts, plywood cases, face frames, utility shelving, and basic furniture builds. The included thickness gauge helps you verify stock thickness before you drill, and it has a built-in hex wrench for adjusting the collar. That is the kind of small detail that saves time because the setup tool is already in your hand instead of buried in a drawer.

Kreg designed this as the same stepped bit system included with several of its newer pocket-hole jigs, so it is a direct replacement when your original bit is worn or when you want a second complete drilling setup. For anyone running repeated pocket-hole joinery, having a spare bit and collar ready is not a luxury. It keeps the work moving when one setup is dedicated to one material thickness and another is set for something else.

The 1/4 inch hex shank fits standard quick-change chucks, which makes this easy to use with common drills and drivers that accept hex accessories. That is useful in small shops and on mobile jobs where you are not running a dedicated drill press or specialty machine. Swap it in, set the collar, confirm material thickness, and get to work.

Compatibility is broad across the Kreg lineup. It is made for Kreg Pocket-Hole Jigs, excluding Micro and XL models, and it is listed as a direct replacement for the parts included with the Pocket-Hole Jig 320, 310, 520PRO, 720, and 720PRO. It also works with K5, K4, K3, R3, Mini, and Foreman DB210. If you are already in the Kreg pocket-hole system, that wide fit is a big reason this accessory matters.

This kit makes the most sense for woodworkers, cabinet installers, trim carpenters, and serious DIY builders who use pocket-hole joinery often enough to appreciate a faster setup and a ready spare. If you only drill a few holes a year, your original parts may be enough. If you build regularly, having the Kreg Easy-Set Drill Bit with Stop Collar & Gauge/Hex Wrench on hand is just smart shop insurance.

A Small Upgrade That Saves Real Setup Time

The Kreg Easy-Set Drill Bit with Stop Collar & Gauge/Hex Wrench is the kind of accessory that makes more sense the more often you build with pocket holes.

• Who it's for: Woodworkers, cabinet builders, trim carpenters, and DIY users running Kreg pocket-hole jigs on a regular basis.
• Why it stands out: The etched depth marks, matching collar window, and built-in gauge/wrench take a simple consumable and make it faster to set accurately.
• Worth knowing: This is not for Kreg Micro or XL systems. For standard Kreg pocket-hole jig users, though, it is a smart spare and an easy replacement.

• What material thicknesses does it support? It works with materials from 1/2 inch to 1-1/2 inch thick, with marked settings for 1/2 inch, 3/4 inch, and 1-1/2 inch stock.
• Will it fit a standard quick-change chuck? Yes. It uses a 1/4 inch hex shank for standard quick-change chucks.
• Which Kreg jigs is it made to work with? It is compatible with all Kreg Pocket-Hole Jigs except Micro and XL, and it is listed as a direct replacement for 320, 310, 520PRO, 720, and 720PRO.
• Is this a replacement part or an upgrade? It can be both. It is a direct replacement for included parts on several Kreg jigs, and it is also useful as a second ready-to-go setup.