Inserta Clamp Compatible Table Hole Size 5/8 in Compatible With BuildPro Welding Tables Top and Squares Features Fast and Easy Clamping Holding Capacity 400 lb Includes T-Handle Maximum Jaw Opening 8 1/2 in Overall Height 0.5 in Overall Length 4 in Overall Width 8.5 in Product Type Inserta Clamp Throat Depth 4 in Work Surface Pattern 5/8 in Hole Process Horizontal and Vertical Clamping