4 1/2 Tri-Wing Bit, Water Well Bit, Rock Drilling Bit, Earth Bit, PDC Bit, Oil Bit, Four-Wing Scraper Bit

• Type：Mini Drill
• Usage：Well Drilling
• Certification：ISO9001
• Thread Type：Male or Female
• API：2 3,8"3 1,2"4 1,2"Support Customization
• Weight：10kg

=== Base Info ===

• Model NO.：4 1,2
• PDC Cutters：Good Quality
• Material：Alloy Steel, Diamond, Carbide
• Features：Fast Speed, High Efficiency
• Formation：Medium Hard, Hard Rock Formation
• Application：Groutiong Coal Mine Gas Discharge Water Well Drill
• Transport Package：Carton or Wooden Box
• Specification：75~325#
• Trademark：speedmade
• Origin：Hunan
• HS Code：8207191000
• Production Capacity：5000000pieces,Year

=== Description ===
4. Composite sheet reinforced:There are mainly 1304,1308,1313,1613,1906,1908,Routine for1304,Enhanced1308 Specifications are75#,91#,110#,130#,150#,170#.In general, conventional 1304 is the most common, and the dosage is also the largest. According to the formation conditions, it can be matched with the geological sheet/petroleum sheet to achieve reasonable use.
Applicable stratum: clay stratum, sand stratum, gravel stratum and weathered stratum.Rock grouping and recommended use of the bit tableGrade nameRepresentsDrilling speedSuggested drill bit1Loose soilredeposited loess,lateritite,Soft sandy soil free of gravel and breccia,diatomite15/HPineapple bit,slice,plain film,Scraper coreless bit2Loose soilloess,red clay,cumulosol,Sand soil,Kaolin class8/HPineapple bit,denticle,slice,Triangle,Bread3Soft rockStrongly weathered shale,Slate,schist,Slightly cemented sand layer6/HScraper coreless bit,Concave three wings,slice,Breadslice4A little soft rockSlate,arenaceous shale,carbonaceous shale,argillaceous marl,calcareous shale5/Hscraper,Recessed coreless bit,slice,Bread,Breadslice,Triangle,Electroplated diamond5A little hard rockRubble and gravel layer collapse layer,Slate,limestone,Marble,schist3/HConcave three wings,Bread,A helmet piece,Electroplated diamond6-7Medium hardnessSlate,schist,Silicified limestone,Calcite2/HBread,A helmet piece,Electroplated diamond,Hot pressed diamond,Innovative no.7 fast bit6-7Medium hardnessSlate,schist,Silicified limestone,Calcite2/HBread,A helmet piece,Electroplated diamond,Hot pressed diamond,Innovative no.7 fast bit8-9Hard layerBasalt,Quartz anshan porphyry,Fai green rock1.2/HA helmet piece,Low-alcohol electroplating,Low thermal,Innovative no.7 fast bit10-11Super Hard rock Granite,granodiorite,gneiss,rhyolite,aposandstone0.8/HLow-alcohol electroplating,Low thermal,Innovative no.7 fast bit12Super Hard rockaposandstone,jasperite,hornberg,corundolite0.3/HLow-alcohol electroplating,Low thermal,Innovative no.7 fast bit

-Production process-

-APPLICATION RANGE-

Apply to:Water Well Drilling/civil engineering and infrastructure/for rock core drilling/geological coring exploration/Soil Testing and sampling /geophysical survey/mineral exploration and other industries.

-WHY CHOSE US-

SPEEDMADED is a leader in the manufacture and development of PDC bits in China. We provide the best quality PDC coring drill to the market, all types of PDC non-coring drill traces. Our drill bits are used for well drilling, mining and construction contractors. Our drill bit has been tested and verified by time, with wear resistance and fast drilling speed. Different drill bits can be customized according to different rock formations. The engineering time is greatly shortened, and the maximum performance is exerted in the operation during drilling. Our products are durable and reliable. Our products are the preferred drill bits for drilling engineers in many countries because of our precise design and efficient drilling during use.

-PAYMENT-

DIY customization: please provide your rock formation information or detailed size drawings.

Free samples: some samples can be provided free of charge.

Trading:EXW, FOB, CFR, CIF, DDU such as.

Payment:T/T L/C,D/A,D/P,Western Union,MoneyGram.

Delivery time: normally 7-12 days

-CERTIFICATE-

-PACKAGING STYLE-

-DELIVERY-

Delivery: there are four main delivery channels including air, sea, express and road transportation, which can be selected according to customers' different requirements.

Air freight logistics:DHL/UPS/EMS/TNT/ FEDEX,etc.

-AFTER-SALES SERVICE-

Dear User:

Welcome you to choose and use our products correctly!

The geological drill bit produced by our company has a 6-month warranty period.In case of abnormal scrap such as sheet falling, steel body cracking, lamination of composite sheet, etc., the company may make compensation if the situation is confirmed by the quality department of the company.

If it is one of the phenomena listed in the following table, it shall be deemed as normal scrapping, and the company shall not compensate for it:

1.Drop: Wear no more than 10%, send back for replacement, wear no more than 50%, depending on the situation, steel body cracking: wear no more than 30%, send back for replacement; Wear more than 50%, such as artificial improper crack, do not change.

2.Wrong size or thread: New back for new.

3.Weak solder joints, broken wing pieces, etc. : wear not more than 20%, send back for a new; Wear more than 50%, such as artificial improper operation, do not change.

4.The problem of lamination of composite slices: It depends.