Those who need or prefer non-locking folding knives are also eager to experience the performance of our proprietary CPM SPY27 steel. To meet that demand, we are proud to introduce a version of our groundbreaking UK Penknife featuring a blade crafted from CPM SPY27. As the inaugural member of Spyderco's SLIPIT family of knives, the UKPK was the first model to combine the convenience of top-of-the-pocket clip carry and one-handed opening (via our Trademark Round Hole) with a socially and legally friendly notched-joint non-locking mechanism. This expression of it faithfully retains all the defining features of the original while showcasing a full-flat-ground, satin-finished CPM SPY27 blade and signature cobalt blue peel-plytextured G-10 handle scales.