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The Cork Borer Set of 3 supplied by IBEX SCIENCES is a fundamental apparatus used across chemistry, biology, physics, and general science laboratories. It is specifically designed as a manual punch tool to cut clean, uniform, and perpendicular holes into corks, rubber stoppers, or other soft experimental plugging materials. [1, 2, 3, 4, 5]
By creating precise holes, this tool allows researchers, teachers, and students to safely slide glass tubing, thermometers, or gas delivery lines directly into experimental setups while maintaining a tight, leak-proof seal. [1, 2]
Key Features and Specifications
- Graduated Three-Piece Set: The set contains 3 nested, hollow metal tubes of progressively increasing diameters. This offers versatility for making small, medium, or larger openings depending on the outer diameter of your glass rods or probes. [1, 2, 3]
- Durable Construction: Manufactured from robust, corrosion-resistant metals like high-quality stainless steel or nickel-plated brass. This ensures the cutting edges stay resilient and resist rust when exposed to moisture or standard lab chemicals. [1, 2, 3]
- Ergonomic Handles: Each borer is equipped with a comfortable handle (often made of durable molded polymer or solid metal) to provide a firm, secure grip while applying downward drilling pressure. [1, 2, 3, 4, 5]
- Nested Storage: The tubes are engineered to snugly slide inside one another, minimizing the storage footprint in lab drawers or equipment kits. [1]
Essential Safety & Operational Protocol
- Lubrication is Key: Before cutting into a stopper (especially a rigid rubber one), always dip the sharp tip of the borer into water, soap solution, or glycerin. This drastically reduces friction and prevents the tool from binding or tearing the material. [1, 2, 3]
- Perpendicular Alignment: Place the stopper flat against a scrap piece of wood or heavy cardboard on your bench. Hold the borer completely vertical to ensure the hole does not exit at a slanted, unusable angle. [1, 2]
- The Motion: Apply firm, controlled downward pressure while continuously rotating the handle in a single direction rather than sawing back and forth. [1, 2]
- Core Extraction: Once pushed all the way through, use the included solid metal rod (ejector pin) to clear out the trapped cylinder of cork or rubber from inside the hollow shaft. [1, 2]
Primary Laboratory Applications
- Gas Collection Systems: Creating airtight connections for delivery tubes in distillation flasks, gas jars, or fermentation setups.
- Temperature Monitoring: Safely mounting thermometers through boiling flask stoppers.
- Botanical Core Sampling: Frequently used in biology labs to extract standardized, uniform cylinder samples from living plant tissues (like potatoes or apples) to study osmosis and cellular fluid transport. [1, 2, 3, 4, 5]
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