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  • Umarex
Umarex Walther OSK1 Outdoor Working Knife
Umarex Walther OSK1 Outdoor Working Knife


Umarex Walther OSK1 Outdoor Working Knife

Code: 5.0760

In stock | Usually dispatched within 24 hours
Order in for delivery as early as

All sales of knifes and bladed items can only be conducted to those over the age of 18 years. Valid ID must also be supplied at the time of order i.e. Driving License or Passport. If you have ordered online, you can speed up the order processing time by sending your ID details to

ID will be checked by courier on delivery. In store sales must also include ID.

The OSK I has a massive blade which is combined with an extra large handle. This provides two different ways of grip: a closer to the rear end, with enhanced power for chopping tasks, or choked up, for more power when whittling, and for better control.

The blade has an unusual shape as well. It has a recurve part for work like removing bark, and a wide spine that can be hammered on to apply extra force. The handle spine extends in a straight line to the point, allowing the knife to be used as a spear when attached to an appropriate shaft. A handguard keeps the fingers away from the edge.

The blade, made of 440C stainless steel with a black protective coating, has a tang with full length, for greater stability: it extends all the way from the point to the lanyard hole at the rear. The polymer handle has slip-resistant rubber inlays.

When not in use, the OSK I is protected by a nylon sheath with a plastic inlet.

The sheath has one long loop and four narrow transverse loops for the belt.

Blade length : 147mm

Overall length : 28 mm

Blade thickness : 4.5mm

Weight : 300g

Blade shape : Special

Blade material : 440C

Handle material : TPR

Locking system : Fixed


We will endeavour to despatch your package within 24 hours although at peak times this may take slightly longer. Orders for RIFs may take 48 hours as we test and chronograph each rifle before shipping.

Our couriers only deliver Monday to Friday between the hours of 8am and 6pm (0800 - 1800 hours) except for local and national holidays. We do not directly control the couriers and we cannot obtain a specific delivery time from them. Delivery may be delayed by extreme weather and events and again is out of our control and accept no liability for delays caused by this.

Cost of Delivery

The cost of delivery will be added to your order total. You can select your preferred method of delivery from the options displayed at the checkout. Please select the correct option for your country to ensure that your order is not delayed.

We reserve the right to adjust shipping methods and costs but this is usually done in your favour and you will be informed by email.

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