Spyderco has long been an industry leader in the use of exotic, high-performance blade steels. After years of using the best materials the world's leading steel manufacturers could provide, we decided it was time to create our own. In close cooperation with Crucible Industries, we have developed CPM SPY27-a particle metallurgy stainless steel containing a proprietary mix of alloys, including vanadium, molybdenum, niobium, nitrogen, and cobalt. This remarkable composition, enhanced by the amplifying effects of cobalt and the state-of-the-art Crucible Particle Metallurgy process, is produced exclusively for Spyderco and will be featured in select models. Every knife made with this steel will also have a distinctive cobalt-blue handle color that highlights its elite pedigree. Specifications for Spyderco Para 3 CPM SPY27 Folding Knives: Manufacturer: Spyderco Blade Length: 2.92 in Closed Length: 4.29 in Blade Material: CPM SPY27 Serrated: Plain Knife Application: Folding Blade Overall Length: 7.21 in Blade Shape: Drop Point Handle Material: FRN (Fiberglass-Reinforced Nylon) Blade Finish: Satin Blade Thickness: 0.145 in Lock Type: Compression Blade Grind: Full-Flat Sheath Material: No Sheath Handle Color: Blue Weight: 2.4 oz Package Contents: Spyderco Para 3 CPM SPY27 Folding Knives