Manufacture ID: 2486Ka-Bar TDI/Hinderer "Hell Fire"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 mouting and application options.The Hell Fire features a recurve Tanto blade and locking sheath with metal TDI Belt Clip.Features:- Weight: 0.35 lb.- Blade Type: Fixed- Blade Length: 3-9/16"- Overall Length: 7-1/4"- Edge Angles: 20 Degrees- Shape: Recurve Tanto- Steel: 1095 Cro-Van- Grind: Hollow- Handle Material: Zytel- HRC: 56-58- Blade Thickness: 0.188