The casing window milling cone and the hydraulic 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.

                                             Basic parameters and performance data.