Step-Type Drag Bits

1.certified by ISO9001&API 2.high quality, competitive price 3.large number of stock 4. Can be customized

Step Type Drag Bit

 

Suitable design of structure enhances the intensity of bits and makes better gauge protection.High quality tungsten carbide ensures good life-span.The stable and reliable welding technology ensures better quality stability.Good match between drill pipes with high precise thread, easily disassembled.

 

Size	Type Pin	Wt. (lbs.)
2 3/4" - 3 1/2"	4 THD N - Rod	3 1/2
2 5/8" - 4 3/4"	2 3/8" API	5 1/2
4 7/8" - 5 1/8"	2 3/8" API	7
5 1/4" - 5 1/2"	2 3/8" API	8
5 5/8" - 6"	2 3/8" API	8
6 1/8" - 6 1/4"	2 3/8" API	8 1/2
6 1/2"- 6 3/4"	2 3/8" API	9
5 1/2" - 6 3/4"	3 1/2" API	22
6 7/8" - 7 7/8"	3 1/2" API	23
8" - 9"	3 1/2" API	24
9 1/8" - 10 7/8"	3 1/2" API	25-30
7 7/8" - 8 7/8"	4 1/2" API	40
9" - 9 7/8"	4 1/2" API	42
10" - 10 7/8"	3 1/2" API or 4 1/2" API	45
11" - 12 1/4"	3 1/2" API or 4 1/2" API	50

 

 

 

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Step-Type Drag Bits