22" 20" 23" HIGH QUALITY hole opener,reamer bit,router bit for well drilling

Specifications 1.Name: 20,22,23inch hole opener

2.IADC:517,537

3.Bearing:Metal/Rubber sealed Journal

4.Application: hole open,well drilling

 WELCOME TO SIRUITE ROCK DRILLING TOOLS Trade Term: FOB/ CIF /CFR Payment Term: T/T,L/C,western union Delivery Time:3~7 days Transportation:by sea,by air,by land Package:wooden case or plywood case MOQ:1PCS     1. Main Market Show Details:             2. Siruite Company Available  IADCCODE for Different Formation Guidance

ROLLER  CONE BITS	ROLLER CONE BIT (M/H)		FORMATION HARDNESS	FORMATION	ROCK TYPE	COMPRESS STRENGTH
	WEM	OBM
111/124	15-30	18-33	Very soft	soft formation with sticky layers and low compressive strength	clay,silts, sands	<25 MPa
116/137 437	9-15	12-18	soft	soft formation with low compressive strength and high drill ability	claystone,marl, lignite,tuff, sandstone	25-50 MPa
126/139 517/527	4.5-9	6-12	Medium soft	soft to medium formation with low compressive strength interb dded with hard layers	claystone,marl lignite,sandstone silts anhydrrites tuff	50-75 MPa
211/217 517/537	2.5-6	3-6	Medium	medium to hard formation with high compressive strength and small abrasive layers	mudstone , limstone, anhydrites, sandstone	75-100 MPa
211/236 537/617	1.5-2.5	1.5-3	Medium hard	hard and dense formation with very high compressive strength but non-abrasive	limestone, anhydrites, dolomite	100-120MPa
311/347 627/637	1-1.5	1-1.5	Hard	hard and dense formation with very high compressive strength and some abrasive layer	shale,sandstone ,siliceous, siltstone	100-200MPa
637 /737 /837	1	1	Very  hard	extremely hard and abrasive formtions	quartzite, lgneous ,rocks	>200MPa

3. FACTORY SHOW (the most advanced production lines in China)       5. We Also Trade Different Famous Brand Tricone Bit   Company Competitive Power:   1.the most professional and experienced senior engineers in this field    guarantee high quality products. 2.MANUFACTURER position ensures competitive price. 3.Sincere salesmen are our business basis. 4.Different sizes and dimensions are available 5. A certain number of bulk stock ensures fast delivery 6. Best after-sales service

Welcome to inquiry and visit our factory     4. Transportation     Note: If you have special need,we will customize according to your demands ! WELCOME TO INQUIRY... Professional sales will give you best choice...