J.A. Henckels Twin Pro S High Carbon Stainless-Steel Boning Knife, 5.5"With a flexible blade that bends around big bones and joints, this knife will fillet a trout but works best with poultry and meats. Classic three-rivet handles distinguish Pro S from Henckels's other quality lines. Pro S handles are heavier and its knives less weight-forward. Handles are also smaller, a feature those with small hands may appreciate. The steel used in the Pro S line is identical to that of the Five and Four Star lines. While this boning knife is dishwasher-safe, hand washing is recommended.