Protech Tr-4 F3 Operator Auto

Sale priceR 6,595.00


This auto folding knife by Pro-Tech Knives features a 4" CPM-D2 tool steel blade which is black DLC coated for tactical and corrosion-resistance purposes. The blade has a very responsive deployment and an extremely secure locking mechanism. The anodized aluminium handle has excellently designed finger grooves for a variety of hand sizes, feather texturing for additional grip, and a backup safety switch that only locks the blade in the closed position. This knife is a great tactical deployment option.

Pro-Tech Knives is proud to be the first choice of police and military professionals around the world – and their knives are built to serve and serve well. Each Pro-Tech knife is a blend of the finest materials available and is a commitment to craftsmanship. Pro-Tech knives are built with the most current high tech manufacturing processes that include: CNC Machining, Wire EDM, laser cutting, and more. Their product’s high tech components are assembled by dedicated and caring craftsmen in their Artesia, California facility. They craft small batches of their knives so that they can take the time to individually hand fit and finish each one to a level rarely seen in a factory knife. Their production knife models offer the best design, function, and value of any knife on the market today. Their custom auto knives are unique pieces of art, and each of their limited edition knives are a showpiece of heirloom quality. No matter which of their knives you choose, we are confident that you will be very satisfied with your purchase.


  • Blade Length: 10.16 cm
  • Closed Length: 13.33 cm
  • Overall Length: 23.49 cm
  • Blade Material: CPM-D2 Tool Steel
  • Blade Thickness: 3.1 mm
  • Blade Hardness: 59HRC
  • Blade Style: Drop Point
  • Blade Grind: Flat
  • Blade Finish: Sterile Black DLC
  • Tritium Push Button Inlay
  • Handle Material: T6-6061 Aluminium, Black Feather Texture
  • Locking Mechanism: Tritium Push Button
  • Pocket Clip: Black Stainless Steel (Tip-Up, Right Carry)
  • Made in the USA
  • Parallel Import: No

Customer Reviews

Based on 2 reviews
David Coetzee
Great knife and great service

The TR4 operator is everything it promised to be and more. Service and delivery was great as always.

Protech Tr-4 F3 Operator

Fantastic knife! Love the ergonomics and tritium button. Quality is great, though the knife was not sharp out the box. Still gets 5 stars.

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