Fabrication: CNC Laser, Waterjet, Plasma, Welding | Welding clamps that fit in hole in table - hole specs | Practical Machinist - Largest Manufacturing Technology Forum on the Web
Lincoln Electric Welding Clamp Set - 8 Clamps for 16mm Fixture Holes, Secure Round and Square Tubing, Oversized Heads for Maximum Clamping in the Welding & Cutting Accessories department at Lowes.com
Welding Table Advanced Accessory Pack • Texas Metal Works