GT60 140mm Retrac Thread Button Drill Bit

Share to:

Threaded Drill Bits cover regular, retrac and reaming types. With stronger button-fixing ability, longer service life, better wear-resistance and impact-resistance performance, they are widely used in tunneling, underground mining, open pit mining, anchoring and other large-scale construction projects.

  • GT60 140mm
  • Kingkong Drills
  • GT60 140mm Retrac Button Bits
  • Retrac Bit
  • flat, uniface, drop center
  • GT60
  • Carbide shape: Dome, ballistic, semi-ballistic
  • benching and long-hole drilling underground
  • MF rod, MM rod heavy duty top hammer
  • superior alloy steel and tungsten carbide

Thread Button bits are made by high quality alloy steel bar and tungsten carbides.Through heat treatment, our drilling tools are tough enough to meet rock drilling demands and have the least loss of energy while drilling the rocks.


Carbide drill rock bit is suitable for powerful percussive drills and top hammers with high speed drifter,such as Atlas Copco 282 rocket boomer, Atlas Copco 352 rocket boomer jumbo,Atlas Copco D7roc,Furukawa HCR 1200, Tamrock,and Ingesoll Rand ECM660. 


The thread drill bits are widely used in bench and production drilling, extensional drilling,our products with comparative advantages of the more prominent cost-effective as the famous brand in the world, our products have been recognized as high-quality brand of rock-drilling tools made in China.


Thread: R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, GT60,GT68

Button bit face design: Flat face, drop centre,

Button bit thread type: Normal, Retrac and straghtrac .

Tungsten carbide (Buttons): Spherical, ballistic and Conical. 

(Threaded R32, R38, T38, T45, T51, bit diameter: 43mm-152mm);


Main button bits diameters:

R32-45mm, R32-51mm, R32-64mm, R32-76mm, R32-89mm

T38-64mm, T38-76mm, T38-89, T38-102mm,

T45-76mm, T45-89mm, T45-102mm,

T51-89mm, T51-102mm, T51-127mm

ST58-89mm, ST58-102mm, ST58-115mm, ST58-127mm

GT60-102mm,  GT60-115mm, GT60-127mm, GT60-140mm, GT60-152mm

retrac type drill bit.0

retrac type drill bit.1

GT60 bit4

retrac type drill bit.3

retrac type drill bit101

Applications of Thread button bits

1.Underground mining and surface mining

2.Long hole drilling

3.Bench mining and production mining

4.Granite, Basalt, Limestone rock etc.

underground mining

Before Official Order, please confirm below informations:

(1) Thread Type

(2) Standard or Retrac

(3) Bit button shape (tip shape)--Spherical or Ballistic

(4) Bit face shape--Drop Center, Flat Face, Convex, Concave, etc...


Contact Amy Zhang for price 

Email: amy@kingkongdrills.com

Mobile: +86 13907256175 (Wechat/Whatsapp/Skype) 





Product Inquiry

Quick Links

Get in touch

     WhatsApp/Wechat:   +8618537121208
    No. 41, Ping An Rd, CBD, Zhengzhou, Henan Province, 
P.R.China 450000
   Friendly Links:   www.kingrockdrillingtool.com

Get in touch

dibu代码

Copyright © Bart KingKong Rock Drilling Tools.   all rights reserved              Technical support: coverweb