This blade is made of D2 stainless steel. It has a 6-1/8" overall length and is 1/8" thick. The 2-1/2" cutting edge of the blade has top serrations and is 1" wide. Uses two 1/8" pins. Satin finished and hollow ground blade. CRYOGENICALLY TREATED to enhance its edge holding properties. The hole ground in the handle is for easier gripping. The knife fits SHEATH #4.