90° Corner Clamp Adapter for Quick-Release Woodworking Clamps

90° Corner Clamp Adapter for Quick-Release Woodworking Clamps
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updated December 9, 2025

Description

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An upgrade for universal quick-release woodworking clamps, adding adapters/attachments/clamping pads that enable clamping elements at a 90-degree angle.

Application: Very useful for assembling boxes, shelves, plexiglass sheets, wooden boards, etc.—making fastening quick and easy!

Functionality: It holds flat elements at a 90-degree angle, forming a corner that facilitates secure fastening.

Compatibility: The slip-on adapters are designed for standard quick-release woodworking clamps with jaw dimensions (excluding the pads typically found on the clamps): length 20 mm, width 12.8 mm.

📏 Adapter Dimensions

Obtuse Angle Jaw (Open):

• Total length: 31 mm

• Arm length: 27.5 mm

• Max width: 43.5 mm

• Height: 22 mm

Right Angle Jaw (Closed):

• Length: 20 mm

• Arm length: 26.5 mm

• Height: 22 mm

⚙️ Printing Tips

Material: PETG or ABS. A durable material is recommended due to the clamping forces and potential stresses.

Infill: Suggested 50-80% for maximum compression strength.

Orientation: Print in an orientation that provides maximum mechanical strength (vertically, so that clamping forces act along the layers).

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