16 the string is then pulled downwardly along the whipstock anchor assembly and positioned in a plane that passes through the axis of the whipstock shaft 26 and also corresponds to the facing direction of the tool guiding surface 13 of the whipstock 10 this line or string not shown is pulled across the edge of the annular compass card 70 and the compass card will then indicate the degrees of angularly displacement of the tool guiding face 13 of the whipstock relative to the scribed line 26h hence relative to keyway 26a in the bottom of shaft 26 the whipstock anchor portion 22 is angularly shifted about the eccentric top portion 26c of the anchor shaft 26 until the string and compass card indicate that the desired degree of angular displacements of the tool guiding face 13 of the whipstock 10 relative to the keyway 26a of the shaft 26 has been achieved at this point a set screw 28 passing radially through the anchor socket portion 22 is tightened against the adjacent portion of the shaft 26 and then the plurality of radially disposed set screws 27 are tightened against the eccentric top portion 26c of shaft 26 to effect the rigid securement of such shaft to the whipstock anchor portion 22 with the desired angular relationship being maintained between the tool guiding face 13 of the whipstock 10 and the keyway 26a of the whipstock shaft 20 the compass card 70 can then be removed from the shaft 26 and the whipstock 10 and its anchor assembly 20 is ready for insertion in the well by the drill pipe 16 to facilitate the alignment of the whipstock.