Hold-Down Clamps are specialised clamps designed to secure a workpiece flat against a workbench or machine table, preventing movement or lifting during machining, routing, sanding or assembly.
Key Characteristics:
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Mounting Method: Engages bench-dog holes, T-slots or clamps directly to the bench edge for a solid anchor point.
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Low-Profile Foot: A flat pad or foot presses down on the workpiece, minimising obstruction to tools.
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Adjustable Height: Screw, cam or lever mechanisms accommodate varying stock thicknesses and bench-dog layouts.
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Clamp Mechanism: Fine-threaded screws for precise pressure, or quick-action levers/toggles for rapid engagement and release.
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Robust Construction: Typically cast iron or steel bodies with corrosion-resistant finishes to withstand workshop environments.
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Protective Pads: Nylon, rubber or plastic feet prevent marring of delicate surfaces and improve grip.
Common Uses:
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Routing & Planing: Holding boards firmly to the bench or router table to prevent kickback and ensure clean cuts.
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Sanding & Filing: Securing thin or small pieces flat for safe, controlled sanding or filing.
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Drilling & Countersinking: Keeping stock immobile on drill presses or benchtop drills for accurate hole placement.
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Assembly & Glue-Ups: Clamping parts flat during adhesive cure to maintain alignment and contact.
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Chiselling & Mortising: Stabilising workpieces when removing material for crisp, precise joints.
