Die collar is a special fishing tool which is used in thread making from external wall of tubing objects, such as tubing and drill pipe. It can be used in fishing cylindrical objects without inner bore or stuck inner bore.
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Model
|
Connection thread
API
|
Total length
（mm/inch)
|
Fishing range
(mm/inch)
|
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MZ-2-3/8REG-2
|
2-3/8REG
|
550(21-21/32)
|
73～80(2-7/8～3-5/32)
|
|
MZ-3-1/2REG-2
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3-1/2REG
|
600(23-5/8)
|
89～100(3-1/2～3-15/16)
|
|
MZ-NC31-LH-1
|
NC31 LH
|
880(34-41/64)
|
55～85(2-11/64～3-11/32)
|
|
MZ-NC38-1
|
NC38
|
1000(39-3/8)
|
63.5～101.6(2-1/2～4)
|
|
MZ-NC50-1
|
NC50
|
1050(41-11/32)
|
150～185(5-29/32～7-9/32)
|
|
