4" Corner Clamps Set of 4 for Woodworking & Framing

Accurate 90° clamping for clean, reliable joints.

This 4-piece Corner Clamps Woodworking Set is designed to hold workpieces firmly at a true 90° angle, making it easier to assemble frames, boxes, cabinets and picture frames with consistent accuracy. Each clamp is made from durable aluminum, providing a strong yet lightweight body that resists corrosion and everyday workshop wear.

The 4-inch clamps feature an adjustable screw mechanism with aluminum alloy steel screws, allowing you to quickly tighten or loosen the grip to fit your material. With a maximum clamping range of 7.5 cm, they accommodate a wide variety of stock sizes commonly used in woodworking, DIY projects and framing tasks. Use them to secure corners while gluing, nailing, screwing or cutting at a 45° angle, helping you maintain alignment and reduce rework.

Why It's a Smart Choice

• Consistent 90° alignment - Right-angle design keeps corners square for frames, boxes and cabinets, improving fit and finish.
• Adjustable clamping range - Up to 7.5 cm capacity allows use with different board thicknesses and materials.
• Durable, corrosion-resistant build - Aluminum construction with alloy screws offers strength, rust resistance and easy portability in your toolbox.

FAQ

Q: What materials can these corner clamps hold?
A: They are suitable for wood, MDF, plywood and similar sheet or board materials commonly used in woodworking and framing.

Q: How many clamps are included in the set?
A: The package contains 4 corner clamps, allowing you to secure all four corners of a frame or box at the same time.

Q: What is the maximum opening of each clamp?
A: Each clamp has a maximum clamping range of approximately 7.5 cm, measured across the jaws.