Watermelon Mill

The Watermelon Mill is used to mill through collapsed casing and liners.  This mill has a tapered top and bottom to allow reaming both up and down.  A connection on the bottom allows a stinger to be run below the mill to keep it centered.  This centering prevents cutting out of the casing or sidetracking.  Watermelon Mills are often run piggyback with a long tapered mill as a pilot.  Click here to see Halford's Tapered Mills.

  • Sizes: 3 1/2" to 6 3/4" and 8 1/4" to 12 3/4"

  • Used to mill through collapsed casing and liners