Types of Broadheads
Fixed Blades: Used by many traditional-style bowhunters, the blades of this broadhead are frequently broad and are typically designed to glue directly onto the arrow shaft. Some have screw-in type ferrule that can be used with adaptors placed on the outside or inside of the arrow shafts.
Removable Blades: This broadhead is designed so that the blades can be replaced on the ferrule. There is no need to discard the entire broadhead if only the blades are damaged.
Mechanical or Expandable Blades: Blades are retracted close to the ferrule before the shot. Upon impact, the blades expand to expose the cutting edges. These blades are recommended for use only with bows rated 50 pounds or more because most mechanical heads require additional energy to open upon penetration.