Key Features
Auto-Adjust Clamping The clamp automatically adjusts to different material thicknesses, so you can move from thin stock to a 2×4 without stopping to reset it. That saves time during assembly and keeps clamping pressure consistent. 6 Inch Reach With a 6 inch throat depth and capacity for materials up to 5 inches thick, this face clamp gives you the reach needed for pocket-hole joinery, edge work, and general wood project assembly. Built for Woodworking Large clamp faces spread pressure evenly to help protect work surfaces, while the all-metal body and padded grips are set up for repeated shop use without beating up your hands.
Overview
The Kreg KHC6 Wood Project Clamp – 6 Inch is a face clamp built for woodworking, pocket-hole joinery, project assembly, and general clamping tasks. This is a face clamp designed for holding wood parts securely during assembly and fastening. Model Number: KHC6. If you want a clamp that works fast without constant fiddling, this one is set up to do exactly that.
The big selling point here is Kreg’s Automaxx auto-adjust system. Instead of stopping to dial the clamp in every time you switch stock thickness, the KHC6 adjusts automatically as you squeeze the handles. In real use, that means you can go from thinner sheet goods to thicker lumber and keep moving. For assembly work, especially when you’re bouncing between parts, that is a real time-saver.
This clamp has a 6 inch throat depth and can clamp materials up to 5 inches thick. That gives it enough reach for a lot of common woodworking situations where a smaller clamp comes up short. It is especially useful when you’re holding two boards flush for pocket-hole screws, edge joining, face-frame work, or keeping parts aligned while fasteners go in.
Kreg also gave this clamp large clamp faces, and that matters more than it sounds. Wider faces spread pressure across the workpiece instead of concentrating it in a small spot. The practical benefit is cleaner holding power with less chance of marking softer or more delicate surfaces. If you’re working with finished parts or cleaner hardwood stock, that is a feature worth having.
Pressure is controlled with a simple thumbscrew, so you can fine-tune how hard the clamp bites. Once set, the clamp maintains that pressure consistently across different material thicknesses. That combination of auto-adjustment plus pressure control makes the clamp easier to trust on repeat work, especially when you want parts held firmly without crushing fibers or shifting them out of alignment.
Build quality is straightforward and job-focused. The all-metal construction is there for long service life, while the ergonomic padded grips help reduce hand fatigue when you’re using the clamp over and over in a session. At about 2 pounds, it has enough heft to feel solid without being awkward for bench work.
The Kreg KHC6 Wood Project Clamp – 6 Inch also fits into the broader Kreg joinery system. It works with the Kreg Pocket-Hole Jig R3 Clamp Pad Adapter, 300-Series Pocket-Hole Jigs, and the Kreg Pocket-Hole Portable Base. If you’re already working in the Kreg setup, that compatibility makes this more than just a generic clamp. It becomes part of a faster, more repeatable assembly process.
This clamp makes the most sense for woodworkers, cabinet builders, trim carpenters, shop-based contractors, and serious DIYers doing furniture, built-ins, and repair work. If your projects involve holding parts flush while drilling pocket holes or driving screws, this is one of those tools that earns its space quickly. It is not trying to be an all-purpose heavy bar clamp. It is a purpose-built woodworking clamp that speeds up alignment and assembly.
Faster Setup for Repetitive Clamp Work
This clamp is built to keep assembly moving. The auto-adjust design cuts out the usual stop-and-reset routine when material thickness changes, which is exactly what slows you down during repeat work.
- 6 inch throat depth reaches farther into assemblies than smaller face clamps
- Clamps materials up to 5 inches thick for a wide range of woodworking tasks
- Thumbscrew lets you set clamping pressure without giving up quick adjustment
What’s in the Box
- (1) Kreg KHC6 Wood Project Clamp – 6 Inch
Key Specifications
| Clamp Type | C-Clamp / Face Clamp |
|---|---|
| Material | Steel |
| Throat Depth | 6 in. |
| Maximum Opening | 5 in. |
| Jaw Width | 8 in. |
| Clamping Strength | 450 lb. |
| Weight | 2 lbs. |
| Color | Gray |
Compatibility
Kreg Pocket-Hole Jig R3 Works with the Kreg Pocket-Hole Jig R3 Clamp Pad Adapter. Kreg 300-Series Pocket-Hole Jigs Compatible with 300-Series Pocket-Hole Jigs for joinery and assembly work. Kreg Portable Base Works with the Kreg Pocket-Hole Portable Base for mobile pocket-hole setups.
Built For
Woodworking Carpentry Cabinet Assembly Pocket-Hole Joinery Project Assembly General Clamping Furniture Building DIY / Hobbyist
Pro Tip
Set the thumbscrew for the pressure you want on your typical stock, then let the auto-adjust mechanism do the rest. That is the sweet spot with this clamp, especially when you’re moving through repeated pocket-hole assemblies with different part thicknesses.
Warranty & Support
Manufacturer warranty: 90 Days.
Tool Nut’s Take
Tool Nut’s Take
Why the Kreg KHC6 Wood Project Clamp – 6 Inch earns a spot on the bench
This is the kind of clamp that makes assembly work less annoying and more repeatable, especially if you do a lot of pocket-hole work.
- Who it’s for: Woodworkers, cabinet guys, trim carpenters, and serious DIYers who need fast, reliable alignment during assembly.
- Why it stands out: The auto-adjust action is the real advantage here. You get quick changes in stock thickness without constantly resetting the clamp, plus wide faces that are easier on finished surfaces.
- Worth knowing: This is a specialized woodworking face clamp, not a substitute for every clamp in the shop. If your work is joinery and assembly, though, it is a very smart buy.
Common Questions
- What is the maximum material thickness this clamp can handle? It clamps materials up to 5 inches thick.
- Does this clamp require manual adjustment for every material thickness? No. The Automaxx system automatically adjusts to match material thickness.
- What kind of projects is this clamp best suited for? It is designed for pocket-hole joinery, project assembly, and general woodworking clamping.
- Is it compatible with Kreg pocket-hole accessories? Yes. It works with the Kreg Pocket-Hole Jig R3 Clamp Pad Adapter, 300-Series Pocket-Hole Jigs, and the Kreg Pocket-Hole Portable Base.
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