TapeTech is the first company to introduce an interchangeable handle system that allows one support handle to be used with every tool. Whether you use standard, fixed length fiberglass handles or aluminum extension support handles, you’ll need just one base handle. The base handle for the fiberglass system is model FHTT. The base handle for the extension handle system is model XHTT. The base handle fits the corner roller, corner applicator and nail spotter without any adapters. The heavy duty, easy-to-change adapter (CFA-TT) connect the new handles to the corner finishers. And the new, optimal diameter makes TapeTech handles the most ergonomic in the industry. Both base handles feature a D-shaped fitting that securely positions the handle in the Corner Applicator and positively prevents the tool from rotating during use.