12 1/4′ ′ 311.1mm IADC Code 537 Oilfield Drill Tricone Rock Drilling Bit Chisel Insert Tooth

• Customization: Available
• Customized: Customized
• Standard: API
• Type: Center Drill Bit
• Material: Tungsten Carbide
• Usage: Well Drilling
• Condition: New
• Warranty: 3 Months
• Applicable Industries: Construction Works , Energy & Mining
• Machine Type: Drilling Tool
• Processing Type: Forging
• Bearing Type: Elastomer Sealed Bearing
• Available Size: 3 7/8′′~32′′
• Application: Oil,Gas,Geothermy,Water Well Drilling,Mining and
• Color: Blue
• Transport Package: Plywood Case
• Specification: ISO and SGS and API
• Trademark: HJ
• Origin: China
• HS Code: 82071990
• Production Capacity: 500

Product Description

 

Bit Size		Bit Type
in	mm
31/2	88.9	HR537	HR637
45/8	117.5	HR117	HR115	HR537	HR637	HR737
43/4	120.7	HR117	HR115	HR537	HR637	HR737
57/8	149.2	HR217	HR537	HR547	HR637
6	152.4	HR117	HR217	HR237	HR517	HR547	HR637	HR737
61/4	158.8	HR127	HR237	HR517	HR527	HR547	HR637	HR737	HR837
61/2	165.1	HR127	HR217	HR517	HR537	HR547	HR637	HR737	HR837
63/4	171.5	HR117	HR447	HR537	HR547	HR617	HR627	HR637	HR737	HR837
71/2	190.5	HR127	HR217	HR517	HR517	HR527	HR527	HR617
77/8	200	HR177	HR437	HR517	HR527	HR537	HR547	HR547	HR617	HR627	HR637
83/8	212.7	HR217	HR527	HR537	HR617	HR627	HR637	HR737	HR837	HR617	HR627
81/2	215.9	HR117	HR127	HR137	HR217	HR247	HR437	HR447	HR517	HR527	HR537
		HE547	HR617	HR627	HR637	HR737	HR837
83/4	222.3	HE116	HR437	HR517	HR537	HR627
91/2	241.3	HR117	HR127	HR417	HR437	HR517	HR527	HR537	HR547	HR617
95/8	244.5	HR117	HR127	HR137	HR217	HR437	HR517	HR527
97/8	250.8	HR117	HR127	HR137	HR217	HR417	HR437	HR517	HR527
105/8	269.9	HR127	HR217	HR437	HR517	HR547
115/8	295.3	HR117	HR127	HR137	HR217	HR147	HR517	HR537	HR547
121/4	311.2	HR117	HR127	HR137	HR417	HR437	HR517	HR527	HR537
		HR547	HR617	HR627	HR637
135/8	346.1	HR117	HR127	HR235	HR437	HR517	HR527	HR537	HR637
133/4	349.3	HR437	HR517	HR537	HR617	HR627	HR637	HR737	HR117	HR217
143/4	374.7	HR117	HR127	HR137	HR517	HR527	HR537	HR547	HR617	HR637
151/2	393.7	HR127	HR217	HR517	HR527	HR537	HR547	HR617	HR637	HR737	HR837
16	406.4	HR117	HR127	HR127	HR517	HR527	HR537	HR547	HR617	HR637	HR737
171/2	444.5	HR117	HR127	HR137	HR437	HR517	HR527	HR537	HR547	HR637	HR737
18	457.2	HR117	HR217	HR237	HR437	HR517	HR527	HR537	HR547	HR637	HR737
19	482.6	HR117	HR217	HR237	HR437	HR517	HR527	HR537	HR547	HR637	HR737
20	508.0	HR117	HR217	HR237	HR437	HR517	HR527	HR537	HR547	HR637	HR737
22	558.8	HR117	HR217	HR237	HR437	HR517	HR527	HR537	HR547	HR637	HR737
24	609.6	HR117	HR217	HR237	HR437	HR517	HR527	HR537	HR547	HR637	HR737
26	914.4	HR117	HR217	HR237	HR437	HR517	HR527	HR537	HR547	HR637	HR737

  

IADC	WOB	RPM	Applicable Formations
	(KN/MM)	(r/min)
	(Bit Dia)
116  117	0.35~0.8	150~80	Very soft formations with low compressive strength and high drillability,such as clay,mudston,chalk etc.
136  137	0.35~1.0	120~60	Soft to mesium soft formations with low compressive strength and high drillability.such as medium soft shale,hard gypsum,medium soft limestone.medium soft sandstone soft formation with harder nterbeds,ect.
216  217	0.4~1.0	100~60	Medium hard formations with high compressive strength,such as medium soft shale,hard gypsum,medium soft limestone,medium soft sandstone,soft formation with harder interbeds ect.
246  247	0.4~1.0	80~50	Medium hard formations with high compressive strength,such as abrasive shale.limestone,sandstone,dolomite,hard gypsum,marble,ect.
417  437	0.35~0.9	150~70	Very soft formations with low compressive strength and high drillability,such as clay,mudston,chalk,gypsum,salt,soft shale,soft limestone,etc.
447
517  527	0.35~1.0	140~60	Soft formations with low compressive strength and high drillability,such as mudstore,gypsum,salt,soft shale.soft limestone,ect.
537  547	0.45~1.0	120~50	Soft to medium formations with low compressive strength,such as medium soft shale,medium soft limestone,medium soft sandstone,medium formation with harder and abrasiver interbeds,ect.
617  627	0.45~1.1	90~50	Medium hard formations with high compressive strength,such as hard shale,limestone,sandstone,dolomite,ect.
637	0.5~1.2	80~40	Hard formations with high compressive strength,such as sandstone,limestone,dolomite,hard gypsum,marble,ect.

Company Information
 

 Hejian Hengji Bit Manufacture Co.,LTD  is specialized in manufacturing high quality rock bit since 2001,especially for tricone bit,PDC bit,hole opener,single cone bit and drag bit.With advanced CNC machines and R&D team and on-time delivery. we have kept our clients ahead of schedule and under budget by providing the highest quality tools at the best possible prices .
    We ship to more than 40 different countries and serve industries such as Oil & Gas, water well , Construction,Mining,  Horizontal Directional Drilling (HDD), Geothermal and Environmental. Our experienced staff is here to assist you with everything from choosing the right bit to shipping around the globe.
     Our goal is to provide our customers with the best quality tools, accessories and service in the industry. We are supported by many years of experience, trained professionals and a full machine shop.  Reduce the cost ,Speed the drilling ,Guarantee the safety is always our aim.  We have been always insist on"Hengji bit,focusing on quality".   

Main products
tricone bit(mill tooth and tungsten carbide insert tricone bit)
PDC bit(matrix body and steel body PDC bit)
hole opener(HDD rock reamer,barrel reamer,etc)
drag bit(step drag bit,PDC drag bit,chevron drag bit,etc)
accessories(single cone,bit breaker,nozzle ,etc)
 

 

 

HENGJI Advantages

--The first-class engineers of tricone bits and PDC bits
--Advanced technology and Equipment, International standard.
--R&D center for rock drilling tools, high precision CNC machines, SGS&ISO Certified.
--10+ Years & 40+ Countries service experience.
--Optimized solutions for various of requirement.

  Packaging 
 

Wood Box
Fumigation Tray if necessary
Other special package can be applied
according to customer's need  

Delivery 
 

Prepared to deliver within 1 week, if in stock
Depends on order quantity, when out of stock
Transportation:By sea or air  

 FAQ
1. Is your company a distributor or a manufacturer?
A:  Yes,We are a a professional factory of rock drilling bits   in China.
 
2. How  about your products?
A : All our activities are accredited to ISO 9001:2008, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.We have many high quality  prducts (https://hb-bits.en.made-in-china.com/) . 
  3.what is the Packaging & Delivery?
  A:We used high quality export carton or standard export woodern case
 
 4.what is the time about the delivery?
   A: repared to deliver within 1 week, if in stock.
Depends on order quantity, when out of stock,7-30days
Transportation:By sea or air
 5. How to order the products?
A: Send the inquiry with detail item description or with Model number. If there is no packing demand we take it as sea-way packing. If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
 
 6.What is the website about your factory?
  A:Our website is: https://hb-bits.en.made-in-china.com/

Click here to view our factory Verified SGS report, SGS Serial NO.: 
QIP-ASI166089 
https://hb-bits.en.made-in-china.com/company-Hejian-Hengji-Bit-Manufacture-Co-Ltd-.html