復(fù)式套銑頭是用于修整落魚外徑鉆除井下落魚周圍的巖塊、砂、石、水泥塊等堆集物。套銑頭分為復(fù)合片式套銑頭和園弧齒套銑頭，復(fù)合片套銑頭主要用于取套作業(yè)。　
The compound wash--over head is used to renovate catch OD and remove residues such as rock, sand ,stone, solid cement around fish, etc. The wash over heads are available in composite type wash--over head and arched type wash--over head. The composited type wash--over head is mainly used for casing taking out in workover operation.

圓孤片式套銑頭技術(shù)規(guī)格及參數(shù)

型號	接頭螺紋	最大套銑鉆具外徑
YXT-190	7"FWJP	153
YXT-235	8 5/8"FWJP	190
YXT-255	9 5/8"FWJP	212
YXT-265	9 5/8"FWJP	215

復(fù)合片式套銑頭技術(shù)規(guī)格及參數(shù)

型號	接頭螺紋	最大套銑鉆具外徑
FXT-190	7"FWJP	153
FXT-235	8 5/8"FWJP	190
FXT-255	9 5/8"FWJP	212
FXT-265	9 5/8"FWJP	215