ABOUT THE PRODUCT

Duty 511 (C) is a practical carbon steel knife with a handle hole for attaching a safety lanyard. With a 2 mm blade, robust finger guard, and hi-vis orange sheath, it’s developed for work at both high and low elevations. Knife sheath with Smart Button and belt clip.

Designed for safety and control

Duty 511 (C) combines the strength of a carbon steel blade with a functional design tailored for professional use. The lanyard hole allows you to secure the knife – a safe solution for work on ladders, scaffolding, or at height.

Built for demanding environments

The tough carbon steel blade provides sharpness and precision, ideal for construction, installation, and industrial work. The pronounced finger guard and balanced design ensure comfort and safety during extended use.

Visible and practical sheath

The hi-vis orange polymer sheath features both a Smart Button and a belt clip for flexible attachment. The bright color makes the knife easy to locate on any worksite.

Swedish carbon steel blade

The 91 mm long and 2 mm thick blade is made from Swedish carbon steel that’s easy to sharpen and delivers excellent edge performance. The material ensures strength, control, and durability for daily professional use.

Developed for professionals – made in Mora, Sweden

Duty 511 (C) is manufactured in our factory in Mora, Sweden, where more than 130 years of Swedish knife-making expertise meet modern production. A safe, durable craft knife designed for professional work.

Size

Knife Length: 206.0 mm / 8.11 inch
Blade Length: 91.0 mm / 3.58 inch
Product Length: 224.0 mm / 8.82 inch
Blade Thickness: 2.0 mm / 0.08 inch
Weight: 110.2 g / 3.89 oz
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Specifications

Art.nr: 14410
Steel Type: Carbon Steel
Steel Manufacturer: C.D. Wälzholz GmbH, Germany
Steel Alloy: C100S
Steel - Annealing: Yes
Steel - Cryo: No
Steel - Hardening: Yes
Nominal Hardness (HRC): 58,5
Grind Angle (total): 22-24°
Edge Angle: 37-39°
Finger Guard: Yes
Sheath Included: Yes
Sheath Orientation: Right
Sheath Color: Hi-Vis Orange
Handle Grip Material: Polypropene
Lanyard Hole: Yes
Flex: Stiff
Country of Origin: Sweden
Brand: Morakniv
Type:Knife
Color: Red, Hi-Vis Orange, Orange
Area of Use: Work/Construction
Sheath Material: Polypropene
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The Knife

Duty knife
Polymer handle (PP)
Ergonomic grip
Finger guard
Polymer sheath

The Blade

Standard tang
German carbon steel C100S
58.5 HRC
Scandi Grind
Length 91 mm, thickness 2 mm

USER MANUAL AND SAFETY INFORMATION

Our products are intended for both hobby and professional use within cooking, outdoor activities, hunting, craft, woodcarving, and more. Please read this manual carefully before use. Improper use may lead to injury.

User Manual and Safety Information