Hammerhead's proprietary processes create a very sharp, lightweight and durable knife. The blade is constructed from Stainless Steel, with a hardness of 55-56HRC. The knife is low-profile and designed to be worn close to the body, eliminating line traps and minimizing drag.
The largest knife in the line is the Patella, which incorporates a hardened butt, useful for those times you need a hammer as well as a knife. At 154g and 12cm in length, this knife is the the most universal dive knife in the lineup.