Hole Opener
The Fixed Diameter Hole Opener
It is made of tough heat treated alloy steel for maximum strength. Cutter arms, equipped with removable cutter, are hardfaced and welded on body. Cutters are available in three types: type SM for soft to medium formation, type MH for medium to hard formation and type XH for hard formation. The hole openers have three or six jet tubes with replaceable nozzles, so that jet streams quickly clean the enlarged hole.
Size: 12-1/4″～36″
Specification:
Std. Opening
Hole
mm(inch) Qty. of Cutters Pilot Hole （mini）
mm(inch) Fishing Neck Down Conn. API I.D.
mm(inch) OAL
mm(inch)
Length
mm（inch） Dia.
mm（inch） Up Conn. API
311(12-1/4) 3 246(8-1/2) 457.2(18) 203(8) 6-5/8REG 4-1/2REG 38.1(1-1/2) 1524(60)
444.5(17-1/2) 3 266.7(10-1/2) 457.2(18) 241.3(9-1/2) 7-5/8H90 7-5/8REG 57.2(2-1/4) 1752(69)
660.4(26) 3 444.5(17-1/2) 457.2(18) 241.3(9-1/2) 7-5/8REG 7-5/8REG 76.2(3) 1753(69)
914.4(36) 3 609.6(24) 609.6(24) 241.3(9-1/2) 7-5/8REG 7-5/8REG 76.2(3) 1905(75)
914.4(36) 4 457.2(18) 457.2(18) 254(10) 7-5/8REG 7-5/8REG 88.9(3-1/2) 2642(104)
Note: When ordering or requesting quotation, if size other than above specifications, please specify clearly!
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