Key Features
3 in Capacity Clamps material up to 3 inches thick with a 3 inch reach, so it covers most face frames, cabinets, and general woodworking assemblies. Auto Adjust Clamp Automaxx auto-adjusting action matches the workpiece thickness when you squeeze the handles, speeding up repetitive clamping without constant readjustment. Dial In Pressure Set clamp pressure with the thumbscrew, then get consistent, predictable hold from one workpiece to the next.
Overview
The Kreg KHC3 Wood Project Clamp – 3 in is a face-style woodworking clamp designed for pocket-hole joinery, project assembly, and general clamping. This is a hand clamp designed for holding parts flush and steady while you drill, drive, glue, or fasten. Model Number: KHC3.
The big reason people buy this clamp is the Automaxx auto-adjust feature. Instead of spinning a screw to fit every new thickness, the clamp adjusts automatically as you squeeze the handles, then locks in. That saves time when you bounce between thin plywood and thicker solid stock during assembly.
Capacity is jobsite-realistic: 3 inch reach, clamping materials up to 3 inches thick (76 millimeters). For cabinet boxes, face frames, edge banding support blocks, and pocket-hole setups, this size hits the sweet spot without getting bulky.
Pressure control is simple and useful. Set your bite with the thumbscrew, and the clamp maintains consistent pressure across different thicknesses. That matters when you are trying to keep parts aligned without crushing softer woods or squeezing all the glue out of a joint.
For surface protection, the large clamp faces spread pressure evenly and are built to avoid marring delicate surfaces. That is a big deal on prefinished parts, hardwood face frames, and any work where you do not want clamp marks to become extra sanding time.
It is also built to play nice with Kreg joinery gear. The Kreg KHC3 Wood Project Clamp – 3 in works with the Kreg Pocket-Hole Jig, the R3 Clamp Pad Adapter, Kreg 300-Series Pocket-Hole Jigs, and the Portable Base, making it a solid “leave it on the bench” clamp for pocket-hole work.
If you do woodworking, cabinetry, trim carpentry, or DIY furniture builds and you want faster clamping with repeatable pressure, this clamp makes sense. If you only clamp once in a while and never change material thickness, a basic screw clamp is cheaper, but it is not as quick.
Clamp Faster Across Varying Thickness
When you are doing pocket-hole joinery, the work needs to stay put and stay aligned. The auto-adjusting action helps you move from part to part quickly while keeping the clamp up to the task.
- Automaxx auto-adjust technology matches the workpiece thickness when you squeeze the handles
- Works with the Kreg Pocket-Hole Jig and Kreg 300-Series Pocket-Hole Jigs
Protect Finished Surfaces
Large clamp faces spread pressure so you get a secure hold without digging into the wood. That means less sanding and fewer dents, especially on softer species and prefinished parts.
- Large clamp faces spread pressure evenly and help prevent marring
- Easy-to-regulate pressure using the thumbscrew
Kreg KHC3 Wood Project Clamp – 3 in Built for Daily Handling
This clamp is made for repeated squeezes at the bench. The padded grips help reduce hand fatigue, and the clamp faces give you a stable contact patch for face-frame and assembly work.
- Ergonomic padded grips designed to prevent hand fatigue
- All-metal construction (steel)
Key Specifications
| Maximum Clamping Capacity | 3 in (76 mm) |
|---|---|
| Reach | 3 in |
| Material | Steel |
| Weight | 1.7 lbs |
| Package Quantity | 1 |
Compatibility
Kreg Pocket-Hole Systems Works with the Kreg Pocket-Hole Jig, R3 Clamp Pad Adapter, Kreg 300-Series Pocket-Hole Jigs, and the Portable Base.
Built For
Woodworking Cabinet and face frame assembly Pocket-hole joinery Project assembly General clamping DIY / Hobbyist
Pro Tip
Set the thumbscrew for the pressure you want on your face frames, then leave it alone. With Automaxx, you can jump between different thickness parts and keep the same clamping feel without re-tuning the clamp every time.
Tool Nut’s Take
Tool Nut’s Take
The “set it once” clamp for pocket-hole work
The Kreg KHC3 Wood Project Clamp – 3 in is for builders who want faster setup and repeatable pressure without babysitting a screw handle.
- Who it’s for: Woodworkers and DIYers doing pocket-hole joinery, cabinets, face frames, and frequent assembly work.
- Why it stands out: Automaxx auto-adjust plus a simple thumbscrew gives you quick clamping with consistent pressure.
- Worth knowing: This is a 3 inch capacity clamp, so it is perfect for common assemblies, but it is not the right pick for thick glue-ups that need a deep-reach bar clamp.
Common Questions
- What thickness can this clamp handle? It clamps materials up to 3 inches thick (76 millimeters) with a 3 inch reach.
- Does it automatically adjust to different material thicknesses? Yes. It uses Automaxx auto-adjust technology to match thickness when you squeeze the handles.
- Is it compatible with Kreg pocket-hole jigs? Yes. It works with the Kreg Pocket-Hole Jig, R3 Clamp Pad Adapter, Kreg 300-Series Pocket-Hole Jigs, and the Portable Base.
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