NEW BLACK NITRIDE Freak XL Boremaster - 8" Inserts Stainless Steel

Only 200 Sets available. These Black Nitride Stainless Steel XL Inserts are as durable as they are good looking. Nitriding is a type of case-hardening process that hardens the outer layer of a part by adding nitrogen to its surface. The added nitrogen combines with iron and other alloying elements in the metal's composition to form hard metallic nitrides.

This process makes these inserts extremely resistant to corrosion and scratches. Great for play in areas with sand!