A spline is a numeric function that can define a curve. And Kershaw’s Spline, designed by Les George, is a knife with plenty of curves. The first curve you’ll notice is the heavy curve of the blade spine. Essentially, the blade is a modified Wharncliffe version of Les’ Mini Harpy, but slimmed down all over to make it a lightweight carry. Les added a top swedge to thin the blade and lowered the tip to enhance its cutting power. The Spline offers a great all-around edge profile with exceptional push-cutting capability. 8Cr13MoV blade steel ensures the Spline’s blade takes and holds its edge, while Kershaw’s BlackWash finish gives it a matte finish and helps hide use scratches—because you are going to use it. The Spline’s handle is steel, also finished in BlackWash, with curves that fit into your palm and give your index finger a secure curve to lock into while you work. The all-steel handles mean that the Spline also gives you a strong frame lock. For quick and easy one-handed opening, just pull back on the flipper and the Spline opens with Kershaw’s SpeedSafe assisted opening. The pocketclip is left/right reversible and there’s a handy lanyard hole.