"The only fletching jig with a HELICAL designed for 2" vanes!" Designed for standard carbon shaft diameters, the Blazer Helix Jig will give you the perfect helical for the Blazer® or any 2" vane. Increased accuracy and arrow flight that will flat out amaze you! Easy to set-up and simple operation. Instructions included. Places 3 vanes 120 degrees apart.