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Basic Info.

Model NO.	75mm
Material	Special Alloy Steel, Diamond, Carbide
Technological	Newly Developed
Transport Package	Carton or Wooden Box
Specification	75~325mm
Trademark	Pearldrill
Origin	Hunan
HS Code	8207191000
Production Capacity	5000000pieces/Year

Product Description

The PDC core bit is also called a hollow bit,a thin tubular multi - toothed bit,the drill body is inlaid with carbide plates.

The purpose of core-taking is to obtain complete stratigraphic decomposition data during exploration, development, and construction. Through a large number of core analysis and research to better formulate a reasonable development and construction program.Use the core analysis data to understand the strength of different formations, such as drill ability and abrasiveness, in order to guide drilling operations and achieve better drilling efficiency.The distribution of oil, gas and water in the oil and gas is analyzed from the core sampling of the target formation, and the porosity permeability and the oil and gas saturation as well as the effective thickness of the oil and gas layers is calculated. Thus producing more valuable oil and gas fields.Different labial shape matrix formulations are suitable for coring in complex rock formations, and the cores drilled will provide reliable data for geological and engineering studies. Classified according to the shape of PDC:Flat PDC core bit,Bread PDC core bit,Cut PDC core bit,Fan PDC core bit and Helmet PDC core bit. Guangzhou International Technology Co.,Ltd. can design various types of PDC core bits according to customer requirements.

Product parameters
ITEM	OD	ID	Height	Teeth NO.	corebarrel
75#	75	54.5	95	4/9	73
94#	94	74	120	6	89
113#	113	89	120	8	108
133#	133	109	130	10	127
153#	153	129	145	12	146
171#	171	147	145	14	168
200#	200	174	150	16	194
219#	219	193	150	18	219
245#	245	219	200	20	425
275#	275	249	200	22	273
325#	325	299	200	24	325

Any size can be customized according to the customer's requirement.The PDC core bit of Flat, Cut, and Fan is characterized by fast drilling speed, while Bread and Helmet PDC core bit is characterized by wear resistance.Strata Grading InstructionsGrade 1 loose soil: secondary loess, secondary laterite, soft sandy soil without gravel and breccia, diatomaceous earthGrade 2 loose rocks: loess, laterite, peat, clay, sand, kaolinGrade 3 soft rocks: strongly weathered shale, slate, dry pasture and schist, slightly cemented sandGrade 4 slightly softer rocks: shale, sandy shale, oil shale, carbonaceous shale, calcareous shale, sand-shale interbedded, argillaceous limestoneGrade 5 slightly harder rock: gravel and gravel layers, collapsible layers, argillaceous slate, sericite chlorite slate, schist, limestoneGrade 6-7 medium hard rock: chlorite, mica, slate, dry pasture, schist, silicified limestone, calciteGrade 8-9 hard rock: silicified mica, gneiss, basalt, diabase, pyroxenite, quartz Anshan porphyryGrade 10-11 hard rock: granite, granodiorite, gneiss, rhyolite, quartziteLevel 12 Hardest Rocks: Quartzite, Jasperite, Cape Shale, Corundum, Quartz, Flint, JasperProduction process:

1. Steel blanking

2. Car inner and outer round thread

3. Milled nozzle insert alloy groove

4. Welding alloys

5. Welded diamond compacts

6. Sanding the appearance

7. paint

8. Packed and shipped

-COMPANY BRIEF-We provide high-quality and complete drilling equipment including drilling rigs, drilling tools, mud pumps, DTH drilling tools, rock drilling tools, etc. They are widely used in water wells, farmland irrigation, geological exploration, small pile holes, geothermal, rope coring, Mining etc. Our products are the products of choice for drilling engineers in many countries due to their precise design and efficient drilling in use. Main product Application Borehole drilling, Civil Infrastructure, civil engineering, and infrastructure, for rock core drilling, Soil Testing and sampling, geophysical survey companies, Pile foundation drilling, bridge drilling, wind power generation, large-mouth engineering drilling, oil field, metallurgy, mining, geological mineral exploration, water conservancy and hydropower construction, coal mine, mine tunnel drilling, grouting reinforcement engineering, highway, subway, high-speed rail, concrete core sampling, etc, Coring exploration, drilling. WorkshopWhy we achive today′s achievements is because we are supported and assisted by a highly experienced team of designers and engineers that enable us to complete all the assigned projects successfully as per the specified requirement from our clients. Guangzhou International Technology Co.,Ltd. will continue committing to provide low cost Rock Drills, Drilling tools, well drilling rigs, high efficiency drilling tools, energy saving and environmental product for domestic and international clients. -WHY CHOOSE US- --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 of service experience.--Optimized solutions for the various requirements. DIY customization: please provide your rock formation information or detailed size drawings. Free samples: some samples can be provided free of charge. Payment:T/T L/C,D/A,D/P,Western Union,MoneyGram. Packaging Wood BoxFumigation Tray if necessaryOther special package can be appliedaccording to customer's need Delivery Prepared to deliver within 1 week, if in stockDepends on order quantity, when out of stockTransportation:By sea or air Purchase process