TapeTech XHTT/CAA is an all-new aluminum extendable angle box handle that is part of an interchangeable handle system. One support handle can be used with Corner Rollers, Angle Boxes, Angle Heads, and Nail Spotters! The base handle XHTT fits the corner roller without adapters, as well as the new design corner applicator and nail spotter without adapters. The new, optimal 1.25" diameter makes TapeTech XHTT handles the most ergonomic in the industry. The XHTT features a D-shaped fitting that securely positions the handle in the Corner Applicator and positively prevents the tool from rotating during use.