Two clamps, two different jobs
The names sound interchangeable, but these Kreg clamps solve different problems. The Pocket-Hole Jig Clamp is a jig accessory: it converts 500-Series Pocket-Hole Jigs to a benchtop setup and adds stability to 700-Series Pocket-Hole Jigs. The Wood Project Clamp is a workpiece clamp: it holds material while you drill or assemble, with a 3" reach and the ability to clamp materials up to 3" thick (76mm).
That distinction matters when you are deciding what to buy. If your jig moves around on the bench, the Jig Clamp addresses that. If your boards shift while you drive screws, the Wood Project Clamp addresses that. Many pocket-hole workflows eventually use both, but they are not substitutes for each other.
Match the clamp to the task
- Stabilizing or converting a pocket-hole jig: Choose the Pocket-Hole Jig Clamp. Supplied information confirms it converts 500-Series Pocket-Hole Jigs to a benchtop setup and provides additional stability to 700-Series Pocket-Hole Jigs.
- Holding workpieces during drilling or assembly: Choose the Wood Project Clamp. It has a 3" reach, clamps materials up to 3" thick (76mm), adjusts automatically to material thickness, and uses a thumbscrew to regulate pressure.
- Working with a Kreg Pocket-Hole Jig, R3 Clamp Pad Adapter, 300-Series Pocket-Hole Jigs, or the Portable Base: The Wood Project Clamp lists compatibility with these items. The Pocket-Hole Jig Clamp's supplied compatibility is limited to 500-Series and 700-Series Pocket-Hole Jigs.
Pocket-Hole Jig Clamp: what the catalog confirms
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Kreg® Pocket-Hole Jig Clamp: Use the Pocket-Hole Jig Clamp to convert 500-Series Pocket-Hole Jigs to a benchtop setup, and to provide additional stability to 700-Series Pocket-Hole Jigs. This is a jig-mounting accessory, not a general-purpose workpiece clamp. Buy it to fix or steady a compatible jig, not to hold boards together.
Kreg® Pocket-Hole Jig Clamp
Wood Project Clamp: what the catalog confirms
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Wood Project Clamp - 3": 3" reach; clamps materials up to 3" thick (76mm). The reach and capacity define the clamp's working envelope. Check your material thickness against the 3" (76mm) limit before relying on it for a joint.
Wood Project Clamp - 3"
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Wood Project Clamp - 3": Adjusts automatically to match material thickness; easy-to-regulate pressure with a simple thumbscrew; large clamp faces spread pressure evenly; ergonomic padded grips prevent hand fatigue. These features support repeated holding tasks where you need quick setup and controlled pressure rather than a fixed jig mount.
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Wood Project Clamp - 3": Works with the Kreg Pocket-Hole Jig, R3 Clamp Pad Adapter, 300-Series Pocket-Hole Jigs, as well as the Portable Base. The listed compatibility makes it the more versatile choice if you own several Kreg pocket-hole setups and want one clamp for holding work.
What the supplied information does not settle
Neither record includes operating instructions, clamping-force ratings, or safety procedures. The Pocket-Hole Jig Clamp record does not list compatibility beyond 500-Series and 700-Series jigs, so do not assume it fits other series without checking the jig's own documentation. The Wood Project Clamp record confirms a 3" reach and 3" (76mm) material capacity, but it does not specify pressure limits or jaw opening beyond that capacity.
Treat these gaps as decision limits, not as product flaws. If your work depends on a specific force, angle, or jig model, confirm it against the manufacturer's instructions for your exact setup before buying.
A practical buying order for pocket-hole work
- First, fix the jig if it moves: If your 500-Series or 700-Series jig shifts on the bench, the Pocket-Hole Jig Clamp is the targeted fix. It is the only one of the two with a stated jig-conversion role.
- Then add a workpiece clamp for assembly: The Wood Project Clamp holds material up to 3" (76mm) thick and works with several Kreg pocket-hole setups. It is the clamp you reach for when boards need to stay put while you drill or fasten.
- Do not buy one as a substitute for the other: The Jig Clamp is not described as a general workpiece clamp, and the Wood Project Clamp is not described as a jig mount. Buying the wrong one leaves your actual problem unsolved.