Quick Answer: The Burette Clamp, Extention, Double Keys 2 holds burettes and condensers up to 80 mm in diameter at a distance from the support stand. Two keys adjust the cork-lined jaws independently, and the arm is an 8-inch (200 mm) stainless steel pipe.
Last updated: October 2026
Key Features
Double key (dual-screw) control adjusts the jaws independently
Cork-lined double V jaws take glassware up to 80 mm diameter
8-inch (200 mm) stainless steel extension pipe
High-pressure die-cast zinc alloy with powder-coated surface
Mounts on laboratory bossheads and retort stands
Technical Specifications
Specification
Value
Primary material
High-pressure die-cast zinc alloy
Extension rod
8-inch (200 mm) stainless steel pipe
Adjustment
Double key (dual-screw) independent control
Jaw configuration
Double "V" shaped profile
Lining
Natural cork
Clamping range
Up to 80 mm diameter
Surface treatment
Powder coating
About This Product
Independent keys let the user centre a fragile condenser or burette in the jaws before tightening, rather than squeezing it off-line. The long arm keeps large glassware clear of the stand rod, which helps when it has to sit over a heating mantle or magnetic stirrer during distillation or titration.
Frequently Asked Questions
What do the double keys on this extension clamp do?
The two keys are separate screws that adjust the jaws independently, so the glassware can be centred and gripped without over-tightening.
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