SR1 is a single piece shell in Titanium or Ergal Aluminum. The blade is made of Sleipner, Uddeholm Sweden, and has 60-61 HRC of hardness. The knife has a ROTOBLOCK safety system patented by LionSteel. With a simple rotation of the RotoBlock you will fix the blade in open position. The toolbar has been reinforced with a hardened steel insert. This insert prevents the hard steel blade to wear out the final part of the toolbar. The supplied key allows you to adjust the blade screw and fix the clip. The screw clip is equipped with a glass-breaker. The Titanium versions come in a nice wood box, the Aluminum comes in a cardboard box. Design by Molletta.