Cold Steel Safe Maker I, Fixed Blade Knife, AUS8A Steel, Plain Edge, 4.5 Blade CS-12DBST The Safe Maker series blades" shafts" and 'T' shaped tangs are fashioned from one solid piece of Japanese Stainless Steel with a stone washed finish" and then subsequently vacuum heat treated and sub-zero quenched for added strength and performance. A textured Kray-Ex handle encapsulates the tang and part of the shaft for added comfort and security.