K10 Kosher Butching Knife

The K10 Kosher Butchering Knife (also called the "Challif") is part of Spyderco's kitchen knife series. It was a collaboration between Spyderco and Rabbi Yurman of New York as a kosher way to kill chickens.

Designer

Spyderco & Rabbi Yurman

History, mentionings etc. from the forums

Sal explains a bit about the background of the K10, including problems encounted with the MRS-30 steel.

Information from the Spyderco catalog on the web

n/a

Variations

The K10 is:

• does not feature Spyderco's trademark round hole
• is Spyderco's only knife to ever use MRS-30 steel
• each PE knife was reground to .1mm thick

SKU	Handle	Edge	Steel	From/To	MSRP	Note	Number made	Grind	Collectors club
K10	Black linen Micarta	PE/SE	MRS-30			Only the PE version is considered kosher, as it cannot have any nicks or scratches in the blade. For this reason, there is also no engraving on the blade, though SPYDERCO/YURMAN is engraved on the handle.	600 (300 PE and 300 SE)	Full Flat

Most collectible variation

Questions regarding collecting the K10

Some interesting questions we are looking for an answer to:

Questions with an answer:

Technical information

Measurements (mm and grams) of the K10 Challif:

Variation	Length overall	Length blade	Length edge	Blade thickness	Weight
K10

Measurements (inches and ounces) of the K10 Challif:

Variation	Length overall	Length blade	Length edge	Blade thickness	Weight
K10