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Core knowledge

Cores provide the backbones for many substrates and tapes. While there may appear not to be much difference between company offerings, there are.

Double E. Co. (West Bridgewater, Mass.) offers its Dura-Light® fiberglass composite cores. Lightweight and strong, Dura-Light cores can be reused indefinitely. They withstand high tension and won't crush, nor will they tear out regardless of torque magnitude. Dura-Light cores are available in diameters up to 48˝ and in lengths up to 32´.