Cole-Parmer™ Heavy-Duty Three-Prong Extension Clamps

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.

• Available in 3 sizes, small, medium, and large
• Constructed of nickel plated zinc
• Supplied with non-slip vinyl sleeves or for temperatures above 100°C, fiberglass covers
• Ideal for irregularly shaped objects
• Additional holder must be purchased in order to attach clamps to lab-frames, support stands or other apparatus