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Rotary Kelly
4145H Modified
Square
Hexagonal
2 ½” to 6”
Top Connection
6 5/8” Reg LH 7 ¾”
4 1/2” Reg LH 5 ¾”
Bottom Connection
NC 26 NC31 NC 38 NC 46 NC50 NC56
Drill Pipe
2 3/8” to 6 5/8”
Grades
E X G S
Ext Upset
Int Upset
Int-Ext Upset
Integral Heavy Weight Drill pipe
4145 Modified quenched & tempered Steel
Sizes
3 ½” to 6 5/8”
Connection
NC 38 NC40 NC 46 NC 50
5 ½” FH 6 5/8” FH
Hard Banding or Internal Coating
Drill Collar
4145H Quenched & Tempered Steel
Slick
Spiral
NC23-31 NC26-35(2 3/8 IF) NC31-41(2 7/8 IF)
NC35-47 NC38-50(31/2IF) NC44-60
NC44-60 NC44-62 NC44-62(4IF)
NC44-65(4IF) NC44-65(4IF) NC44-67(4IF)
NC50-67(41/2IF) NC50-70(41/2IF) NC50-70(41/2IF)
NC50-72(41/2IF) NC56-80 NC61-90
NC70-97 NC70-100
Spiral Drill Collar with elevator groove & slip
Non Magnetic Drill Collar
Stabilizers
Integral Blade Sprial
Integral Blade Straight
Integral Blade Non Magnetic
Replaceable Sleeve
Non Rotating
Bit size 6” to 28”
Connections
NC 38 NC 46 NC 50
3 ½” REG 4 ½” REG 6 5/8” REG 7 5/8” REG
Reamers
Hole Openers
Kelly Valves
Full Opening Safety Valves
Inside BOP Valves
Drop In Check Vavles
Arrow Type Back Pressure Valves
Float Valve Sub
Rotary Subs
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