K Tool International XDDB13X15 is engineered to provide flexibility and performance in demanding access situations. Featuring a patented ninety tooth ratcheting mechanism, it supports controlled operation in tight spaces. The extra long reversible design extends reach while dual one eighty degree rotating heads allow use at multiple angles around obstructions. An innovative internal gear mechanism with Spline Plus spherical profile enhances engagement, while the raised box end gear improves surface contact when working with recessed fasteners.