Cole-Parmer Essentials Heavy-Duty Three-Prong Extension Clamp, Single, Large

Design allows the use of the clamp’s full depth – no springs or internal workings to get in the way. Choose single adjustment style for standard use where one prong or “finger” is adjusted using a wing nut, while the other prong remains stationary or for a more versatile clamp choose the dual adjustment style. Utilizing thumbscrews, both prongs are easily adjusted over a wider range. The prong height for these clamps make them ideal for use in holding and securing glassware with precision ground glass joints.