• Heavy duty steel and resin
• Punches a perfect slot into dart flights to accept a stem ring to hold flights secure
• Prevents flights from popping off
• Use with product 37-0138 stem rings (sold separately)

Directions for use:

1. Place ONLY ONE flight into the slot - do not do more than ONE 
   (this will not work on nylon or Dynastar flights)
2. Punch the hole out of your flight making sure to insert the bottom portion of the flight into the punch.
3. Insert the stem ring (37-0138) into the hole in the flight
4. Slide the flight and stem ring onto the shaft together.