Hole Opener

Hole Opener is one kind of universal hole opening tool for onshore and off shore drilling, and working together with bit, also can finish both drilling and opening at the same time.

Specifications:
1. Enlarger pilot hole.
2. Diameter can be customized.
3. With or without pilot bits.
4. Drilling soft to hard formation.

Hole Size	Pilot Hole	Standard Fishing Nick O.D	Thread Type
Hole Size	Pilot Hole	Standard Fishing Nick O.D	Upper	Lower
2007-5-8	2005-5-8	5-1/2~6	4-1/2 REG	3-1/2 REG
2008-1-2	2005-5-8	5-1/2~6	4-1/2 REG	3-1/2 REG
2010-5-8	2007-5-8	8	6-5/8 REG	4-1/2 REG
2012-1-4	2008-1-2	8	6-5/8 REG	4-1/2 REG
2014-3-4	2010-5-8	8~9-1/2	6-5/8 REG	6-5/8 REG
17	2010-5-8	8~9-1/2	6-5/8 REG	6-5/8 REG
2017-1-2	2010-5-8	8~9-1/2	6-5/8 REG	6-5/8 REG
20	15	8~9-1/2	6-5/8 or 7-5/8REG	7-5/8 REG
24	15	8~9-1/2	6-5/8 or 7-5/8REG	7-5/8 REG
26	15	8~9-1/2	6-5/8 or 7-5/8REG	7-5/8 REG
36	26	9-1/2~10-1/2	7-5/8 or 8-5/8REG	8-5/8 REG
42	26	9-1/2~10-1/2	7-5/8 or 8-5/8REG	8-5/8 REG