Quick answer
The Kreg Pocket-Hole Jig Expansion Pack adds a second drill guide, a spacer, and material-thickness stops to your existing 310, 320, or 520 jig, letting you drill two holes at once and handle common DIY material thicknesses more easily.
What the expansion pack includes
The expansion pack contains a second drill guide that mirrors the one already on your jig, a drill guide spacer for adjusting hole spacing, and material-thickness stops for 1/2", 3/4", and 1 1/2" stock. The spacer works with both the 310 and 320 models.
If you already own a 520, the expansion pack gives you a second set of drill guides that match the 520's dual-guide design, effectively doubling your capacity. For 310 and 320 owners, it upgrades your single-guide jig to a dual-guide setup.
Why you might want it
Drilling two pocket holes at once cuts your setup time in half when you're building cabinets, shelves, or frames. The material-thickness stops also eliminate the need to manually set the drill depth for common materials, reducing measurement errors.
The included drill guide spacer lets you adjust the spacing between holes, which is useful when you need to avoid hitting an edge or want to center the holes on narrow stock.
When you can skip it
If you rarely work with materials thinner than 3/4" or thicker than 1 1/2", the material-thickness stops won't add much value. Similarly, if you only build one-off projects and don't mind drilling one hole at a time, the second guide may not justify the cost.
The expansion pack does not include a new jig base or clamp, so it won't improve your jig's stability or clamping force. It's strictly a capacity and convenience upgrade.
Decision rules
- Do you drill pocket holes in batches?: If you build cabinets, shelves, or furniture that requires multiple identical pocket holes, the second drill guide doubles your speed. Buy the expansion pack.
- Do you use 1/2", 3/4", or 1 1/2" material often?: The included material-thickness stops let you set the drill depth instantly for these common sizes. If you work with these thicknesses regularly, the expansion pack reduces setup time.
- Do you need adjustable hole spacing?: The drill guide spacer allows you to change the distance between holes. This helps when joining narrow boards or avoiding knots. If you need this flexibility, the expansion pack delivers it.
- Do you already own a 520 jig?: The 520 already has dual guides, but the expansion pack gives you a second set of guides and the spacer. This is useful if you want to keep one setup for thick material and another for thin material without readjusting. If you rarely switch between material thicknesses, the extra guides may sit unused.
Product facts
-
Kreg® Pocket-Hole Jig Expansion Pack: Expansion pack to create additional hole-drilling and spacing options for Kreg Pocket-Hole Jig 310 and 320. Simple to set up and easy to use with material-thickness stops for common DIY materials: 1/2", 3/4", 1 1/2". The preset stops save you from measuring drill depth each time, which speeds up repetitive drilling and reduces mistakes.
Kreg® Pocket-Hole Jig Expansion Pack
Is it right for you?
Best for
- DIYers who build multiple projects with 1/2", 3/4", or 1 1/2" material
- Owners of Kreg 310 or 320 jigs who want dual-guide speed
Not for
- Woodworkers who only drill one hole at a time and don't need preset stops
- Users who need a new jig base or clamp (this pack does not include them)
