The TDI/Hinderer knives are design collaborations between Tactical Defense Institute President and Chief Instructor, John Benner, and custom knife maker, Rick Hinderer, owner of Hinderer Knives.Based on their combined experiences as a veteran police Lieutenant and Fire Fighter/EMT, John Benner and Rick Hinderer have designed knives for real-world emergency situations–sure when gripped and ambidextrous for a multitude of mounting and application options.The Hell Fire features a recurve Tanto blade. Locking hard plastic sheath and reversible black metal belt clip (1480CLIP) included. Fits maximum height of 1.75″, width of 1.25″ and thickness of 0.25″.Handle Color: BlackBlade Length- 3.563 inchesBlade Steel- 1095 Cro-VanBlade Thickness- 0.188 inchesBlade Type- Fixed BladeBlade Width- 1.25 inchesColor- BlackEdge Angle- 20 DegreesGrind- HollowHandle Material- UltramidKnife Manufactured In- United StatesOverall Length- 7.25 inchesRockwell Hardness- 56-58Shape- Recurve TantoSheath Manufactured In- TaiwanTang Stamp- KA-BAR/TDI/HindererWeight- 0.35 lb