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Left Hand Fishing Spear

Left Hand Fishing Spear

    There is usually a counter clockwise thread for tool joint at the upper part. Cone at the lower part can make the expansion sleeve of the spear convergent screw the fish connection Raising the drilling tool. The expansion sleeve can hold the fish firmly,then reversing.

    Technical Parameter
Type
O·D
(mm)
Left–hand Thread
API
Right–hand Thread
API
Tensile load
(kN)
Allowable reversing torque
(kN.m)
DKQ33
86
NC26
NC26
260
5
DKQ41
105
NC31
NC31
500
9
DKQ46
121
NC38
NC38
900
15
DKQ63
162
NC50
NC46
1300
28
DKQ64
165
NC50
NC50
1500
35
DKQ64A
165
NC50
65/8REG
1500
35
DKQ64B
165
NC50
75/8REG
1500
35
DKQ70
178
51/2FH
51/2FH
2000
50
DKQ80
203
65/8REG
65/8REG
2500
65
DKQ90
229
75/8REG
75/8REG
3000
80