Medford Infraction Knife Teal/Violet Multietch Titanium, Tumbled S45VN by Greg Medford
- Infraction Teal/Violet Multietch Titanium, Tumbled, a sports car design-inspired semi-custom folding knife from Medford Knife & Tool. Dedicated to those who like a slightly sleeker design than Praetorian, but still reliable!

This product is intended for use only by adults with knowledge and experience in handling sharp cutting tools. Improper use of the knife can result in serious injuries. The blade is extremely sharp and can easily cut through skin and tissue; therefore, extra caution should always be exercised while cutting, and hands should be kept away from the cutting edge. To prevent the knife from slipping, it is recommended to cut on a stable, non-slip surface and avoid excessive force, which may cause uncontrolled blade movement.
Leaving the knife on the edge of a table, countertop, or in easily accessible places—especially where children are present—poses a significant safety risk. The knife should always be properly secured after use, ideally by placing it on a stable surface or storing it in designated knife blocks, protective sheaths, or magnetic strips. The knife should never be used for tasks it is not designed for, such as opening cans or prying objects, as this can damage the tool and lead to dangerous accidents.
A dull blade increases the risk of injury, as it requires more force and is more likely to slip from the material being cut. Therefore, it is essential to sharpen the knife regularly to maintain optimal sharpness. Additionally, proper cleaning and drying of the knife are necessary to prevent corrosion and bacterial growth. Periodic inspection of the handle and blade is recommended to check for cracks, chips, or looseness. If any damage is detected, the knife should be repaired or replaced immediately.
When using the knife, focus solely on the task at hand—avoid talking on the phone, watching television, or other distractions while cutting. Ensure proper lighting in the workspace for better visibility and control. Please note that some countries or regions have laws restricting the ownership and carrying of knives. Before purchasing or using this knife, verify that its use is legal in your location according to applicable regulations.
Following these safety guidelines will help ensure safe and effective knife use, minimizing the risk of accidents and extending the lifespan of the tool.
Infraction Teal/Violet Multietch Titanium, Tumbled, a tribute to dynamic sports car designs. A folding knife, with handmade customizations that Medford Knife & Tool specializes in. Sleeker lines than the Praetorian, but it's still built like a tank "made in USA" work knife. It's ideal for everyday "EDC" carry, and will perform equally well in an office environment and in the field for the toughest cutting tasks.
Greg Medford's idea was to create the most reliable knives imaginable while retaining their beauty and adding the "soul" of hand finishing.
CPM S45VN - corrosion resistant, mechanical stress resistant American CPM S45VN powder steel with added carbon, chromium and vanadium with a hardness of 58-59 HRC being a developmental version of the well-known and popular S30V steel. This unique steel is designed for the production of high-grade blades and knives, manufactured at Crucible Inc. steel mills.
In this version of Infraction we get a "tumbled" machine finish on the Blade, a concave grind and a striking embossing to increase strength around the opening with which the knife is opened. For increased insensitivity to contamination, phosphor bronze washer was used, making the pivot axis more resistant to field work. A powerful titanium frame lock bar secures the knife from folding, unfolded and secured the knife is as solid as an armored cash register.
Handle grips made of titanium have been personalized (custom) by adding the edge of the handle with a different color than the grips The titanium backspacer ends in a glass nailer with a hole for interlacing a safety or decorative cord. The whole is completed by a massive clip, also made of titanium, of course.
Comes with a Peli-type waterproof case for storing and carrying the knife.
Custom Specifications:
Model: Infraction
Blade steel: CPM S45VN
Blade finish and grind: Tumbled Hollow Grind
Grip Grip Finish: Multi-etch Teal Titanium, Grip Edge Finish: Violet
Hardware package finish (pivot and screws): Standard Gray
Clip finish: Brush Gray
Breaker/lanyard finish: Standard NP3
Technical data:
Product number: MK031STQ-38A3-TSCS-Q4
Product name: Infraction Teal / Violet Multi-etch Titanium, Tumbled.
Overall length: 203.0 mm / 8.0″
Blade length: 92.1 mm / 3.625″
Blade thickness: 4.8 mm / 0.19″
Handle length: 121.0 mm / 4.75″
Handle thickness: n.d.
Weight: 136.0 g / 4.8oz
Blade material: CPM S45VN
Blade hardness: n.d.
Blade grind: Hollow
Blade finish: Tumbled
Handle material: Titanium
Handle finish color: Teal/Violet Multietch
Backspacer material: Titanium
Backspacer color: Gray
Clip: Right, tip-up
Clip material: Titanium
Pivot mechanism: Phosphor bronze washers
Locking mechanism: Frame Lock
Opening method: Manual, thumb hole
Additional accessories: plastic case (Peli type)
Designer: Greg Medford
Brand name: Medford
Manufacturer: Medford Knife & Tool, USA
Country of origin: USA
Developed by: the Sharg® company