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Starting-Window Mill FSO

Starting-Window Mill FSO

Description Features and benefits Dimensions Downloads

The Starting-Window Mill FSO is used to trip and set whipstock on the bottom and mill “window” in casing in one trip.  

The Starting-Window Mill may be used:  

  • to trip and set the Whipstock
  • independently with washover through circulating openings
  • in conjunction with one (two) Watermelon mill.
  • The Mill is strengthened with tungsten carbide powder
  • Tripping speed: not exceeding 49.21 ft/min
  • Delivered Mill is ready to operate.

Casing diameter 4 1/2 – 9 5/8 in (114.3 – 244.5 mm)

Length 1.76 – 2.23 ft (537.0 – 680.0 mm)

Length of cutting unit 0.61 – 1.21 ft (187.0 – 370.0 mm)

Outside diameter 3.62 – 8.5 in (92.0 – 216.0 mm)

Outside diameter of pilot unit 2.91 – 6.14 (74.0 – 156.0 mm)

Weight 26.4 – 198.5 lb (12.0 – 89.0 kg)

Connecting thread can be designed and manufactured according to client’s specification