Kershaw 1670NBM4 Blur Factory Special Series CPM M4 pocket knife, Ken Onion design


The Kershaw Blur 1670NBM4 Factory Special Series was designed by famous knife maker Ken Onion. Again he clearly left behind his signature on the design of the Blur. The wavy blade is easy to open with one hand with the assisted opening and the thumb stud. As such it is perfect for both left and right-handed use. The blade is black thanks to the DLC (Diamond Like Carbon) coating and looks very tactical. The handle is made from aeroplane aluminium and enhanced with a Trac-Tec grip-tape inlay. This provides you with enough grip, even in wet circumstances. It also makes the knife look even more tactical. Thanks to its modest size you can easily use this knife on a daily basis. This knife is meant for intensive use.

This is a special Factory Special collection edition. Only a limited amount of this knife is produced. This blade is made from CPM M4 steel. A top-quality type of tool steel that retains its sharpness well. As such you rarely have to sharpen your knife.

The blade is blocked with the help of the Inset Liner Lock. A Kershaw construction for which the knife isn’t enhanced with liners over the entire length of the knife. Only a small liner for the liner lock was added. You can attach the pocket clip in two ways: tip up and tip down.

SKU: KE-1670NBM4. Categories: , . Brands: .

Product Description

Features & functions

Finish blade DLC-coating
Right or left-handed right-handed
Blade shape drop point
Type of edge plain edge, recurve
Tools knife
Opening system thumb stud
Type assisted opener, everyday carry, Limited Edition
Pocket clip yes, tip-up/tip-down (right)
Lock liner-lock
Can be opened with one hand yes, assisted opening
Way of sharpening Western sharpening angle
MOLLE-compatible no
Sharpening angle 19º
Pocket clip position tip-down
Pocket clip side right
Number of tools 1
Bearring type phosphor bronze washers

General information

Brand Kershaw
Colour blue, black
Can be engraved yes
Country of origin USA
Warranty on materials and manufacturing defects lifetime
Designer Ken Onion
Series Blur


Material handle aluminium
Type of steel CPM M4

Scope of delivery

Pouch no
Sheath no

Dimensions & weight

Weight 113 grams
Blade height 2.7 cm
Blade length 8.4 cm
Closed length 11.4 cm
Cutting edge length 8.4
Blade thickness 3.1 mm
Total length 20 cm