J.B Machinery (Ningbo) Co., Ltd.

Button Drill Bits Thread Taper Bits Anchor Coupling

Payment Type: L/C,T/T
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
Delivery Time: 60 Days
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Basic Info

Model No.: JBR3890BB

Certification: SGS, ISO 9001:2008

Condition: New

Additional Info

Packaging: plywood cese

Transportation: Ocean,Land,Air

Product Description

Key Specifications:

  • Buttons: 6 to 24
  • Button types: conical & hemispherical
  • Button hole: 51 to 175mm
  • Thread type: R32, R38, R51, T30, T40, T76, etc.
  • Raw material: alloy, carbon, carbide, stainless
  • Production process: casting, forging, machining, welding
  • Surface treatment: antirust, electro-galvanized, spray-paint, black coating, dacromet


Button bits with hemispherical button is for high bearing capacity and abrasive resistance, while conical button is for high drilling speed and low abrasive resistance.

J.B button bits have great reliability, powerful drilling capacity but low operating cost. High quality materials and professional design, as well as advanced manufacturing technologies result in endurance, good performance and long service life. 


No. Products  Nominal Thread 

        Hole               Diameter      mm

        Article            Regular  
1 Button Bit R32 51 JBR3251BB
2 76 JBR3276BB
3 R38 76 JBR3876BB
4 90 JBR3890BB
5 R51 90 JBR5190BB
6 100 JBR51100BB
7 115 JBR5115BB
8 130 JBR51130BB
9 T30 51 JBT3051BB
10 76 JBT3076BB
11 T40 76 JBT4076BB
12 90 JBT4090BB
13 T76 130 JBT76130BB
14 150 JBT76150BB



Raw Material Production Process Surface Treatment
Carbon steel Machining Antirust
Alloy steel water glass investment casting Electro-galvanized
Stainless steel Silica sol investment casting Spray-paint
Carbide Forging Black coating
Welding Dacromet


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Contact Information

CONTACT US

J.B Machinery (Ningbo) Co., Ltd.

Contact Person: Peggy Xing

Phone：86-574-89258631

Fax：

Address: Guoyichang, Hengxi, Yinzhou, Ningbo, Zhejiang,Ningbo,Zhejiang

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