• Model NO.：T51-127-16mm
• Design：Flat Face Normal,Retrac,Straightrac Body
• Model No.：R25 R32 T38 T45 T51 St58 Gt60 Drill Bit
• Material - Cabide：Tungsten Carbide Yk05
• Material - Steel：42CrMo
• Technology：Hot-Pressing or Welding
• Advantage：Hiqh Quality, Factory Price
• Transport Package：Wood Package
• Specification：SGS, CE, ISO9001
• Trademark：PRODRILL
• Origin：China
• HS Code：82071990
• Production Capacity：10000pec,Months

Thread bit
button bitDia.Buttons
(No*Size mm)Gauge button angleWeight
KgmmInchGaugeCentreButton bit893 1/29*116*1035°4.010249*126*1235°4.81154 1/26*136*1235°5.812756*146*1335°8.0893 1/29*116*1040°4.8Button bit893 1/28*126*1135°4.010248*137*1235°6.61154 1/28*147*1335°7.012758*147*1435°9.4893 1/28*117*1140°4.010248*137*1240°6.6Button bit/flat/retrac894 1/29*116*1035°4.910249*126*1235°7.11154 1/29*136*1235°9.5893 1/29*116*1040°4.9Button bit/drop center/retrac893 1/28*126*1135°4.710248*137*1235°5.31154 1/28*147*1335°7.012758*147*1435°8.0893 1/28*127*1140°4.710248*137*1240°5.31154 1/28*147*1340°7.0 
As a leading manufacture, has the most comprehensive range of thread button bits with superior quality and lowest cost in tophammer drilling fields.
 
*** Features & benefits:
*Different front designs for various rock formations
*Longer service life
*Improved hole straightness
*Lowest cost per meter drilled
*** Size and Specification:ThreadDiameter rangeSkirt DesignFace DesignButton DesignNormalRetracFlat FaceDrop CentreHemisphericalBallisticConicalR22 yesnoyesnoyesnonoR2535-57mmyesnoyesnoyesyesnoR2836-57mmyesnoyesnoyesnonoR3241-76mmyesyesyesyesyesyesnoR3548-51mmyesyesyesyesyesyesnoR3857-127mmyesyesyesyesyesyesyes         T3864-102mmyesyesyesyesyesyesyesT4576-127mmyesyesyesyesyesyesyesT5189-140mmyesyesyesyesyesyesyesT60102-152mmyesyesyesyesyesyesyes         ST5889-140mmyesyesyesyesyesyesyesGT6093-140mmyesyesyesyesyesyesyesST68102-152mmyesyesyesyesyesyesno 
drill bits face shape selectionBit Face Shape SelectionBrief introductionDrop Center BitFor high penetration rates in soft to medium hard and fissured rock formations, Low to medium air pressures. Maximum hole deviation control.Concave FaceThe all-round application bit face specifically for medium hard and homogeneous rock formations. Good hole deviation control and good fishing capacity.Convex FaceFor high penetration rates m soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash. And many reduce the load and wear on the gauge buttons. But poor hole deviation control.Double Gauge FaceThis kind face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.Flat Face BitThis kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressure. Good penetration rates are resistance to steel wash. 
drill bits carbide button shape selectionCarbide button shape selectionBrief introductionDomed/Round ButtonDomed /Round Buttons are usually used as gauge buttons of DTH Bits. Suitable for very abrasive and very hard formations.Parabolic/Semi- Ballistic ButtonsParabolic Buttons are usually used as gauge buttons and front buttons of DTH Bits, suitable for medium abrasive and hard formations.Ballistic ButtonBallistic Buttons are usually used as front buttons of DTH Bits, Suitable for medium abrasive and medium hard formations. They can also be used as gauge buttons if the rock is soft.Sharp ButtonSharp Buttons are usually used as front buttons of DTH bits for soft formations where fast penetration rates are possible.Flat ButtonFlat buttons are usually used as protection buttons to reduce Near on rubbing surfaces of DTH Bits. 
Besides, we have a wide range of rock drilling tools for drilling projects, including DTH Hammer, DTH Bit(Hammer bit), RC Hammer, RC Bit, drill pipe; Overburden drilling systems, symmetrix system; retrac button bit, shank adapter, coupling sleeve, drill rod; tricone bits, drill collar etc.
 


*** ROCK DRILL BITS MAIN DESCRIPTIONS
1. Tapered rock drill bits
Type: Chisel Bits / Cross Bits / Button Bits
Diameter: 28mm,30mm 32mm,34mm,36mm,40mm,42mm,44mm
 
2. Thread rock drill bits
Thread Tpe: R22, R25, R28, R32, R38, T38, T45, T51.
Diameter: 51mm to 127mm
Face Shape: Plate, Concave, Convex.
Bit Shank & Coupling sleeve: R22, R25, R28, R32, R38, T38, T45, T51
 
3. Down-The-Hole Tools
1) DTH BIT: 65MM to 254mm.
2) DTH Hammer: 76MM /90MM /110MM
3) Face Shape
Convex: Suitable for soft rock (less than 1033.5bar)
Concave: Suitable for medium-hard rock (1033.5bar~2067bar)
Plate: Suitable for hard rock (more than 2067bar)
 
4. Drilling Rods
1) Steel Drill Rod: H19/H22, Length: 0.5M to 6.0M.
2) Thread Rod: R25, R28, R32, R38, T38, T45, T51.
3) Integral Drill Rod: H19/H22, Diameter---20mm - 42mm.
 
Other products:
( In addition to supply rock drill bits year-round, we also supply other related products as follows, welcome you to contact us if any help we could provide for you.)
 
Note: The rock drill bits type can be customizable as your request.
 
Advantages:
Compared with the oversea brands, our advantages are bellowing:
a. Our products can match over 95% against the original products
b. Price are competitive against the famous brands and best quality against the small factory

Other rock drill: besides Threaded Tophammer Rock Drill Button Bits, we also supply following
Construction & Mining & Rock Drill Tools:
A. DTH Hammer and Bit (drill hole dia.: 76 ~ 381mm), Overburden Drilling System;
B. Top Hammer (drill hole dia.: 33 ~ 152mm):
Thread Tools (Button Bits, Rod, Coupling, Shank Adaptor): (R25/28/32/38, T38/45/51, ST58)
C. Ginding Machine: button bit sharpen Grinder
D. High Rang Soundless Cracking Agent (dia. 40 ~ 50mm): break rock or reinforced concrete with silent.
 

About Us:
1. Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.
2. We have advanced technology and equipment.
3. Our technician has more than 13 year's professional working experience.
4. Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA, Canada, Australia, Brazil, Uruguay, Philippines, Thailand, India, etc.


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5. Contact: welcome your inquiry and question, please contact Tina Xu. 
0086 150 6073 0593