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Cork borers cut precise circular holes in corks, stoppers, and soft materials. They work using sharp cylindrical metal blades that extract uniform plugs. Laboratories use them for custom glassware sealing, gas delivery setups, and educational experiments. Sets include multiple diameters and sharpening tools. As an established lab supplier, Better Equipped supplies high quality, durable cork borers all backed by warranites and our no quibble guranty.