40 visiting now: 18 USA USA flag 12 France France flag 7 China China flag 2 Sweden Sweden flag 1 Germany Germany flag

Step Type Drag Bits Wholesale - China

price: contact company for price

A drag bit is a drill bit usually designed for use in soft formations

such as sand, clay, or some soft rock. However, they will not work well

in coarse gravel or hard rock formations. Uses include drilling water

wells, mining, geothermal, environmental and exploration drilling.

Whenever possible, they should be used to drill pilot holes because they

produce cuttings that are easiest to log.

Select tungsten carbide inserts 3/16' thick are standard

Carbide inserts are individually hand soldered using nickel silver rod

Bits fabricated are welded with high tensile strength 7018 rod

Drag bits are welded solid at the nose for durability

Blades originate from 4140 heat-treated tool steel forgings

Forgings are milled to better seat the carbide inserts

Relief is hand ground behind carbide inserts for maximum performance

Bits can be built to the gauge tolerances required

Step drag bit: three wings step drag bit, four wings step drag bits;

Drag bits diameter:76mm to 445mm;

Drag bits thread sizes: :2 3/8” API Reg, 3 1/2” API Reg, 4 1/2” API Reg, 6 5/8” API Reg, etc;


Company Contact:


  • Phone: 8659187513252

  • Address: 7F, China Foreign Trade Center Building, No.75, Wu, fuzhou, China

  • Email: Email


Published date: October 10, 2013 -

  • Business Description: involved in international trade import export of goods, products, and services

Related listings



  • Reaming Bits Wholesale
    Reaming Bits Wholesale
    Equipment - Drill Bits - Qideli Rock Drill Tools Co., Ltd - China - October 10, 2013 - contact company for price

    A reaming bit functions to enlarge a borehole and it is designed with a drill portion and a reamer portion. The drill portion is formed by cutting edges at the end of a plurality of flutes, and the reamer portion includes a first relief formed on eac...

  • Tapered Button Bits Wholesale
    Tapered Button Bits Wholesale
    Equipment - Drill Bits - Qideli Rock Drill Tools Co., Ltd - China - October 10, 2013 - contact company for price

    (1) Type: button bits (2) Size: 19mm, 22mm, 25mm (3) Diameter: 30mm-42mm. (4) Taper degree: 4°46′, 6°, 7°, 11°, 12°. (5) Buttons 4, 5, 6, 7, 8 (6) Flushing Hole 1, 2 (7) Skirt Normal, Length (8) Package: in wooden case or in carton. (9) Product...

  • Tapered Chisel Bits Wholesale
    Tapered Chisel Bits Wholesale
    Equipment - Drill Bits - Qideli Rock Drill Tools Co., Ltd - China - October 10, 2013 - contact company for price

    (1) Type: chisel bits (2) Size: 19mm, 22mm, 25mm (3) Diameter: 26-100mm. (4) Taper degree: 4°46′, 6°, 7°, 11°, 12° (5) Dimension of Tungsten Carbide 15*10mm(Normal),18*10(Strengthen) (6) Skirt Normal,Le...



Safe Trade Tips

  • Ask for business references and check them
  • Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services. Avoid payments in advance such as money transfers
  • Verify their business via their local Chamber of Commerce
  • Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.
  • Get to know more about scams to avoid: Internet Crime Complaint Center - International Financial Scams
  • This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"