Milling shoes can be divided into three kind: flat-bottom (or concave-bottom) milling shoe, guide mill shoe and come mill shoe according to its structure and shape At the milling surface, the carbide particles are built up by welding, which plays a part of self-milling. It is used to mill the fallen substances, such as bolt, nut, tooth wheel, slip dog, fittings for deep-well pump, etc.
Type | O.D./in | Connetion API | OAL/in |
MX105 | 4-1/8 | NC23 | 3-1/2 |
MX114 | 4-1/2 | NC26 | 16 |
MX140 | 5-1/2 | 3-1/2REG | 27-1/2 |
MX152 | 6 | NC38 | 18-1/2 |
MX178 | 7 | NC46 | 19 |
MX195 | 7-43/64 | 4-1/2REG | 21-1/4 |
MX215 | 8-15/32 | 4-1/2REG | 21-1/4 |
MX311 | 12-1/4 | 6-5/8REG | 23-27/64 |
MX406 | 16 | 7-5/8REG | 25-19/32 |
1. Designed and manufactured according to API spec 7-1.
2. It can complete casing window cutting and window repair operations once with regular and smooth window.
3. Milling shoe can be divided into three kind: flat-bottom (or concave-bottom) milling shoe, guide mill shoe.
4. It is used to mill the fallen substances, such as bolt, nut, tooth wheel, slip dog, fittings for deep-well pump.