Name: Extrema Ratio T-Razor Black pocket knife
Brand: Extrema Ratio
SKU: ER04.1000.0138-BLK
Price: 258 EUR
Availability: InStock

Work Sharp Professional Precision Adjust WSBCHPAJ-PRO-I sharpening system

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Handle/blade: anticorodal/N690
Blade length: 9,8 cm
Weight: 130 grams



The **Extrema Ratio T-Razor** is an exceptional pocket knife, based on a straight razor blade. That'll come as no surprise, given its shape. Back in the early 20th century, almost everyone carried a pocket knife. This also brought about the first weapon laws, which restricted the types of knife you could have on you. Suddenly, pocket knives were no longer allowed to have a pointed tip. This led to people spontaneously breaking off the tips of pocket knives to make them “legal”. Some people switched to carrying straight razors. This “abuse” of the straight razor inspired Extrema Ratio to design the T-Razor.




The Extrema Ratio T-Razor has a blade that is quite thick on the spine, but paper-thin around the edge. It is hollow-cut, just like a classic razor blade. Now let's answer the most obvious question: yes, it is razor sharp. Is it an actual razor blade? Not really.



Thanks to its thinly sharpened Böhler N690 steel blade, this knife is a big hit with knife enthusiasts. Not so much for heavy use, but rather an Italian design object. It's great for opening an envelope or peeling an apple, less so for woodworking or other tough tasks.



You open the T-Razor with the front flipper. The liner lock then holds the blade in place when opened. The handle is made of anticorodal aluminium, a top-quality alloy that is highly corrosion-resistant.




Extrema Ratio T-Razor Black pocket knife

blade_finish

Extrema Ratio T-Razor Satin pocket knife

colour

handedness

opening_system

handle_material

knife_edge_type

multitool_tools

sharpening_type

knife_bladeshape

pocketknife_lock

sharpening_angle

pocketknife_steel

pocketknife_onehanded

value_multitool_tools_number

knife_sheath

value_weight

value_blade_height

value_blade_length

value_opened_length

value_blade_thickness

brand

expectedRestockDate

legal_agecheck_key

msrp_price

engravable

Personalize it! We can engrave many products. Great as a gift! [Read more about the options here](/en/pt/-order-with-engraving.htm). Looking for an engraving? Don't forget to add the product '[Order with engraving](/en/pt/-order-with-engraving.htm)' to your order. 

Can be engraved

warranty

Almost all the products we sell come with a manufacturing warranty. Want to learn more about the warranty? Read our topic: [warranty explained](/en/ct/warranty-explained.htm)

Warranty

origin

The country of origin is the country the product is produced, as far as we know. This may differ from the country where the brand itself is located.

Country of origin

article_number_site

General information

We always measure the blade height at the highest part of the blade.

Blade height

We always measure the blade length ourselves. This is the length of the blade from the tip to the front of the handle. This may deviate from the manufacturer's specification.

Blade length

value_blade_length_edge

The length of the cutting edge is measured from the tip to the start of the edge. This may deviate from the manufacturer's specification.

Cutting edge length

We always measure the blade thickness at the thickest part of the blade. Often just before the handle. This may deviate from the manufacturer's specification.

Blade thickness

value_closed_length

We always weigh a product as bare as possible. Knives and axes always without their sheath, lights (if possible) without their battery. For knife sets we measure the entire weight. This may deviate from the manufacturer's specifications.

Weight

Dimensions & weight

value_steel_hardness

The hardness in Rockwell C for a knife is always according to the manufacturer's specifications. When a manufacturer specifies a value of 56-58HRC, for instance, we always note the highest value, i.e. 58HRC.

Hardness

Material

This concerns the type of edge [Want to learn more about a serrated versus a plain edge](/en/ct/pocket-knives-difference-plain-edge-serrated.htm)?

Type of edge

molle_compatible

MOLLE is a mounting system that allows you to attach sheaths and other accessories to backpacks. With this specification we indicate whether a product is already MOLLE-compatible by default. [Want to learn more MOLLE](/en/ct/what-is-molle.htm)?

MOLLE-compatible

pocketknife_clip

This is the type of lock used. There are many different types of locks that are used by many different brands. [Want to learn more about locks](/en/ct/locking-mechanisms-on-pocket-knives.htm)?

Lock

We measure the sharpening angle ourselves. This value is the angle per side.  So 20º means that the total angle of the edge is 40º. Please note that knives are almost always sharpened by hand, even in factories. This value is therefore only an indication of a single tool measured by us. You are always free to choose your own sharpening angle. [Learn more about sharpening angles](/en/ct/sharpening-angles-explained.htm).

Sharpening angle

In terms of grind we are talking about how the complete blade thickness extends into the edge. Want to learn more about grinds? [Read all about grinds on knives](/en/ct/knife-grinds.htm).

Extrema Ratio T-Razor Black pocket knife

Extrema Ratio T-Razor Black pocket knife

Full description

Specifications

Specifications

General information

Dimensions & weight

Material

Features & functions

Scope of delivery

Extrema Ratio T-Razor Black pocket knife

Extrema Ratio T-Razor Black pocket knife

Extrema Ratio T-Razor Black pocket knife

Full description

Specifications

Specifications

General information

Dimensions & weight

Material

Features & functions

Scope of delivery

Extrema Ratio T-Razor Black pocket knife

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