KA-BAR TDI Investigator 1493 – black AUS-8A steel blade, black Zytel handle

The KA-BAR TDI Investigator 1493 features the distinctive angled silhouette of the TDI line in a particularly compact design; with a total length of 12.7 cm and a weight of 54 g, this small fixed-blade knife prioritizes a compact design and a grip that is distinctly different from that of a traditional straight-blade knife. In fact, the blade angle has been designed to mimic the grip of a firearm.
Designed specifically for law enforcement and security professionals, this small KABAT TDI tactical fixed-blade knife allows for an instinctive and immediate grip, thanks to the body’s natural memory.

Its AUS-8A stainless steel drop-point blade features a smooth cutting edge and a hollow grind. The black finish complements the handle’s understated design, creating an entirely dark appearance. The short blade retains a rounded belly, useful for small, everyday cutting tasks.

The Zytel handle features a pronounced curve and a notch designed to accommodate the index finger. This geometry gives the Investigator its distinctive character: a short handle, designed to ensure a secure grip despite the knife’s compact size.

The included hard case complements this focus on compactness. Its clip and adjustment options allow the attachment to be adapted to different carrying configurations. A simple and lightweight package, designed for enthusiasts of small fixed-blade knives with distinctive ergonomics.

Technical specifications of the KA-BAR TDI Investigator 1493 fixed-blade knife:
Model Number: 1493
Series: TDI – Tactical Defense Institute
Blade length: 6.8 cm
Edge length: 5.7 cm
Overall length: 12.7 cm
Blade thickness: 3.0 mm
Steel: AUS-8A stainless steel
Hardness: 57–59 HRC
Blade profile: drop point
Edge: smooth
Grind: hollow
Blade finish: black
Handle: Black Zytel
Sheath: rigid polymer with clip and adjustable attachment
Knife weight: 54 g
Manufactured in Taiwan

Tellknives Review:
We appreciate the compact size of this Investigator and the coherence of its design. It offers a different take on the small fixed-blade knife: the angled handle provides a firm grip, while the light weight makes it easy to carry.

However, this unique ergonomic design should be chosen with full awareness of its characteristics. For fans of the TDI concept, the Investigator is a compact and affordable option, with an adjustable sheath that fully enhances the knife’s overall appeal.