Lyman Pro Case Flare Die.40 S&W Silver. The long tapered expanding plug allows you to adjust for just the right amount of case flair to properly position a bullet for seating. Our Case Flare Die is also made of corrosion resistant stainless steel which protects it from rust and keeps it looking like new for a lifetime of use. Specifications for Lyman Pro Case Flare Die: Manufacturer: Lyman Color: Silver Fabric/Material: Stainless Steel Gun Type: Pistol Package Contents: Lyman Pro Case Flare Die Lyman 7701106: Pro Case Flare Die.40 S&W Silver