Application
The Starting-Window Hydraulic Hard-Alloyed Mill is used to trip and set whipstocks KOGM and KOGM-I through the line of resultant pressure (hydraulic line) and to cut "window” in casing in a single trip.
Construction
The mill can be used:
- individually with a washover through water courses in body of the Mill;
- in conjunction with one (two) Watermelon Mill