Name: roller cone bits for drilling rig
Brand: Hongsheng
Availability: InStock

Product Details

Specifications

1 Longer life
2 Cost less per meter
3 Convenient Transportation
4 API & ISO

Workover by Releasing Spear
Model	Salvage range(mm)	Connector thread	Allowable loadKN
TLM73	54.6-62	NC31	430
TLM89	66.1-77.9	NC31	800

Anti-stabbing spear top
Salvage Size	Connector thread
m70x3	2 7/8”TBG

Window milling drum sets
Model	Connector thread	Borehole size
KLT114	NC31	5 1/2”

Workover by Releasing Spear
Model	Salvage range(mm)	Connector thread	Allowable loadKN
TLT73A	70.62-73.79	NC31 2 7/8”TBG	400
TLT89A	88.5-89.5	NC31 3 ½”TBG	450

ZDM-type drill buckle down Spear

Type	Outside diametermm	Inside diametermm	Connector threadAPI	Salvage threadAPI		Applicable upside down drill	The maximum pulling loadkN
ZDM40	152	28	NC46LH	NC46	4-41/2" DrillDrillpipe 61/4-63/4" Drill collar		350
ZDM46	121	12	NC38LH	NC38	31/2" DrillDrillpipe 5" Drill CollarDrill collar		350
ZDM46S	121	12	NC38	NC38	1/2" DrillDrillpipe		350
ZDM62	159	28	NC50LH	NC50	41/2-5" DrillDrillpipe 7" Drill CollarDrill collar		500
ZDM62S	159	28	NC50	NC50	41/2-5" DrillDrillpipe 7" Drill CollarDrill collar		500
ZDM64	165	28	NC50LH	NC50	41/2-5" DrillDrillpipe 7" Drill CollarDrill collar		500
ZDM70	178	32	51/2FHLH	51/2FH	51/2" DrillDrillpipe		700
ZDM70S	178	32	51/2FH	51/2FH	51/2" DrillDrillpipe		700
ZDM80	203	32	NC50LH	65/8REG	8" Drill CollarDrill collar		800
ZDM90	229	32	NC50LH	75/8REG	9" Drill CollarDrill collar		800

Various sizes of slips fishing tube, tube upside down fishing, fishing pump cylinder, multi-purpose fishing can be used to salvage the casing tube
Outer diameter: 42,46,50,55,60,73,78,89