EDC folding pocket knife Demko Knives Shark-Cub Slicer Shark-Lock CPM-20CV premium steel black DLC coated blade finish gray aluminium handle. Length of closed knife: 10.5 cm. Blade length: 6.7 cm. Slicer blade. Black DLC blade finish. Ambidextrous lugs for one-handed blade deployment. Pocket clip. Designer: Andrew Demko. The Shark-Cub Slicer Shark-Lock CPM-20CV premium steel black DLC coated blade finish gray aluminium handle pocket folding knife from Demko Knives is a sturdy little folding knife, ready to take you through your day and tackle all your cutting needs. The Shark-Cub Shark-Lock pocket knife is available in two blade shapes (Clip Point or Slicer). The Shark-Lock locking/unlocking system is both easy to use and extremely secure. This is a real plus in favour of the Demko Shark-Cub Shark-Lock knife, because both the security and ease of use of the shark lock system mean that you can feel confident with the knife when you use it, even for sustained use and for tasks requiring strength.