Skip to main content

TDI Investigator

(No reviews yet) Write a Review
Usually ships in 1 - 2 business days
Blade Length:
2.71 inches
Knife Material:
AUS 8A Stainless Steel
Handle Material:
Country of Original:

The TDI Investigator was specifically designed as a close-quarters "last option" knife, and is almost identical to the TDI Original knife except it has a shorter handle for better concealment, and also has a high quality sheath designed for horizontal mounting. The belt clip can be oriented for left or right hand mounting. Designed to be ergonomic and easy to deploy, this is the perfect choice for every day carry as a backup to your primary concealed handgun. 

Man with grey beard smoking a cigar, wearing a heavy black jacket

The Ka-Bar TDI knif product line was designed by John Benner, a 33-year veteran police Lieutenant. We have had the pleasure of training several times with John at the Tactical Defense Instititute where he is President and Chief Instructor. He is the legendary originator of many principles in self defense and law enforcement tactics from which he has gained extensive experience and knowledge in knife fighting and design considerations. If you are interested in top level tactical training, look no further than: