zuanlongbits@gmail.com

+86-029-82612068

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Email: zuanlongbits@gmail.com

Tel: +86-029-82612068

Fax: +86-029-82612068

Address:No 66, Changming Road, Xi'an, Shaanxi Province, China

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standard core drill bit sizes

  • PDC Cutter Bits Design Grading/PDC Drill Bit Manufacturers/PDC Drill Bit Prices

    Contact NowPDC Cutter Bits Design Grading/PDC Drill Bit Manufacturers/PDC Drill Bit Prices1,)Customized product is provided,just provide us the drawing,or detailed size; 2,)Free samples is provided, Business started after your test successfully; 3,)Promise you factory price,stable stock,and fast delivery; 4,)If quality is not satisfy your market,cost will be returned to your side; 5,)ZLONG makes quality as its life,best service as its soul.Whenever you need,ZLONG is at your side; 3,)The blade is durable,do not need to grinding,easy to use 4,)It can be used in the coal mine, such as traffic, water and electricity industries bolting hole drilling. 5,)We could supply the size from Φ25 to Φ42mm. And we also could provide the different strength roof bolting bits, like ordinary type,strengthened type, and super strengthened type.Read More

  • 3wings PDC Step Drag Drlling Bits Water Well Drag Drill Bit

    Contact Now3wings PDC Step Drag Drlling Bits Water Well Drag Drill BitZuanlong supplies a variety of drag bits for many types of projects drilling needs, including 3 wings type bits for soft and medium formations, 4 wings, especially 4 wings chevron type for harder formations. Each of our bits is machined from a forging to exacting standards and then tipped with tungsten carbide. Mining grade tungsten carbide tips are brazed to the bits wing face for heavy duty bits. Then pin threads are CNC manufactured and wings surfaced hardening subsequently.Read More

  • Coal Mining Tools PDC Core Drill Bit Diamond Core Bit For Drilling

    Contact NowCoal Mining Tools PDC Core Drill Bit Diamond Core Bit For DrillingZLONG Company professionally produces PDC drill bits,diamond drill bit,drill pipes and also R&D new products as per customers'request.All the products under control of ISO9001:2000 quality system and passed the inspection of Beijing Rock-drilling Machine Inspect Center and some of them obtained National patent.Read More

  • PDC Roof Drill Bits/coal Bits/Mining Bits/dust Hog Bit

    Contact NowPDC Roof Drill Bits/coal Bits/Mining Bits/dust Hog BitPDC anchor shank drill bits are mainly used to drill the roof and side supporting hole, the gas drainage, water infusion, geological exploration hole and grouting hole and so on for the coal mine seam, water conservancy and hydro-power, dam and roadway construction of bolt-mesh support.Read More

  • Coal Mining Geological Exploration Long Life PDC Core Bit Manufacturer

    Contact NowCoal Mining Geological Exploration Long Life PDC Core Bit ManufacturerPDC core bits incorporating PDC(Polycrystalline Diamond Compact) cutters can be very cost effective and very productive, which are applied to rock formations of f≤10,mainly used for geological and hydrology drilling. We have two main types of PDC core bits are available: PDC rib core bits and...Read More

  • Factory Direct Diamond Core Drill Bit For Rock/Diamond Core Bit Set

    Contact NowFactory Direct Diamond Core Drill Bit For Rock/Diamond Core Bit Set1). Our prodcut has been approved by ISO9001; 2). Our company has been awarded various certificates and honors by goverment, such as observe contact and keep promise enterprise, reliable quality enterprise, civilized unit, high and new tech enterprises, advanced qualtiy management enterprise,ect. ; 3). Specific researching and developing laboratory; 4). More than 15 years manufacturing experience;Read More

  • PDC 3 Wings Half Tips Bit, Buy Roof Support Bolting Drill Bit

    Contact NowPDC 3 Wings Half Tips Bit, Buy Roof Support Bolting Drill BitPDC Roof Support Bolting Drill Bit are mainly used in cola mining roof supporting, gas drainage, water infusion, geological exploration hole and grouting hole drilling.Read More

  • China Top Manufacturer 3-wing Blade Drag Bit/Drag Bit Sizes/Drag Bit Prices

    Contact NowChina Top Manufacturer 3-wing Blade Drag Bit/Drag Bit Sizes/Drag Bit PricesZuanlong supplies a variety of drag bits for many types of projects drilling needs, including 3 wings type bits for soft and medium formations, 4 wings, especially 4 wings chevron type for harder formations. Each of our bits is machined from a forging to exacting standards and then tipped with tungsten carbide. Mining grade tungsten carbide tips are brazed to the bits wing face for heavy duty bits. Then pin threads are CNC manufactured and wings surfaced hardening subsequently.Read More

  • 2017 Factory Direct Bits PDC Hole Rock Reamer Drill Bit With Long Service Life

    Contact Now2017 Factory Direct Bits PDC Hole Rock Reamer Drill Bit With Long Service Life1). Our prodcut has been approved by ISO9001; 2). Our company has been awarded various certificates and honors by goverment, such as observe contact and keep promise enterprise, reliable quality enterprise, civilized unit, high and new tech enterprises, advanced qualtiy management enterprise,ect. ; 3). Specific researching and developing laboratory; 4). More than 15 years manufacturing experience;Read More

  • 60mm,75mm,94mm,113mm,133mm Pillar Drill Bit Factory Direct

    Contact Now60mm,75mm,94mm,113mm,133mm Pillar Drill Bit Factory DirectZuanlong PDC Pillar Drill Bit has been wildly used to coring-drilling for geological exploratory of coal measure stratum. The normal type is suitable for the f<=10, the reinforced type is suitable for f<=16. Note: Customization are availableRead More