For precision cutting of tender stems, NEW from Spear and Jackson, S & J Razorsharp ergonomic Bypass Pruners are interchangeable and come with FREE spare blades. Easy change system with slip and click adjustment. SK5 Tool Steel. Ergonomic Blade angle provide leverage ratio 1:3. Hex key supplied with each set of spare blades. Easy, ambidextrous locking catch. Soft feel grips. Interchangeable insert that can be removed to hold Grafting Knife, Sharpening. File or Finger Loop.