O1 - Not precision Ground

Size: .187 x 2" - Sold by the foot
Sale price$19.26 USD


How steel is shipped

Bars are shipped as 48" bars as long as they can be shipped with UPS.  72" bars are cut in half for shipping, 60" bars are cut to 36 +24 for shipping.  If shipped with Canada Post or another carrier, they will need to be cut half (24" for 48", 36" for 72", 36+24" for 60" bars)

If you want steel cut to 4", 6", 8" or 12" pieces, please purchase by the foot and put a note in the cart "Order Instructions" drop down box of the size you would like it cut. 

No instructions will result in the longest possible piece being shipped.  


O-1, or oil hardening type 1, is a tool steel that has a place in many industries, including and particularly knife making.

NJSB O-1 is hot rolled with the option to run your pieces through the grinder to remove any decarb.

Easy to forge and grind, O-1 is a great steel for many applications among seasoned makers with the ability to accurately heat treat it. O-1 does require specific temperatures and soak times so it may not be an optimum choice for inexperienced novice makers with limited equipment.

As a deep hardening, high carbon tool steel, O-1 is hard to beat, literally.

From beasty competitions choppers to elegant high-speed kitchen cutlery, NJSB O-1 is the go-to tool steel for any major application you can consider.


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