Woodstock D3629 Quick Release Clamp/Spreader Set, 4-Piece
One handed operation frees the other hand to maintain alignment of the items being clamped. Just squeeze the grip for tightening and press the button to release. Repositioning the fixed jaw also turns these clamps into spreaders without the need for any tools. This all-in-one set includes: two 12-Inch clamps and two 18-Inch clamps.