Universal Cork-Lined Clamp with Boss Head, 2.3" Capacity

This universal clamp features two cork-lined prongs with adjustable jaws that hold cylindrical items from 15mm to 60mm in diameter, including test tubes, burettes, and flasks. The cork lining protects glassware and improves grip. The body is die cast with plated brass parts, actuated by nickel-plated brass knobs and a twin-screw mechanism for secure tightening. A boss head is included that fits support rods up to 15mm (0.59") in diameter, allowing the clamp to mount directly to a standard retort stand.