The hydraulic whipstock produced by our company include ground spear anchoring and hydraulic anchoring. The hydraulic anchoring has the characteristics of azimuth accurate and anchor firmly. When the casing in the oil layer is seriously damaged or the oil layer collapses and is buried in sand, and the oil well can no longer be produced, in order to reduce the cost of drilling well,  milling the casing and sidetracking a new wellbore by whipstock.  The sidetracking tool mainly consist of whipstock and casing window milling .

The casing window milling cone and the whipstock are used together to complete the window milling operation in the casing. The casing window milling integrates window opening and window repairing, completes window opening and window repairing operations at one time, improves the construction speed, and satisfies the site construction requirements. In terms of design, the shape of the casing window milling, the cutting edge angle of the alloy and the selection are optimized.

Junk mill (or milling shoe) is used for milling downhole fallings by bottom or side surfacing wear resistant material, a tool for repairing top of fish. 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.