The Impression Block used in fishing operations is an assembly of a steel body and a soft lead founded at the bottom.

Milling Shoe can be divided into threekindsflat-bottomor concave-bottommilling shoe, guide milling shoeand cone milling shoe, according to its structure and shape. At themilling surface, the carbide particles are built up by welding, whichplays 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

Specifications.

Type	Max. OD.	Connection	OAL
PMX215-1	215	4-1/2REG	540
PMX311-1	311	6-5/8REG	595
PMX406-1	406	7-5/8REG	650

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