Rock Drill Bits atlas copco button bit: ? Button bit is well known for its high wear resistance on medium-hard to hard abrasive rock formations (between 200 Mpa to 260 Mpa compressive strength).Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture. ??Recommended for eliminating hole deviation ? Widely used drifting and tunneling
? Bit face design is ideal for medium-hard to hard abrasive rock

Product Name:	Rock Drill Bits atlas copco button bit
Description:	For different rock hardness mining,tunneling,quarrying button bit Button bit Made with high quality of best quality alloy steel bar and tungsten carbide, through heat treatment.
Material:	Alloy steel bar and tungsten carbide bit
MOQ:	trial order 1-5pcs
Body Type	Normal type and retract type
Thread type	R25,R28,R32,R38,T38,T45,T51,ST58,ST68
Diameter	32mm-152mm
Button bit shape	Spherical and Ballistic
Face shape	Flat shape and Drop-center shape

? Rock Drill Bits atlas copco button bit?and Insert types Spherical Button Characteristics
1.Universal button
2.Good wear resistance
3.Best suited for hard ground
4.27000-48000PSI(180 to 320Mpa)
5.Suited for abrasive to very abrasive drilling conditions ? ? ? Ballistic Button Characteristics
1.Fast Penetration
2.Best suited for soft rock
3.10000-20000PSI(70 to 140Mpa)
4.Suited for non-abrasive drilling conditions ? Applications of? rock drilling tools ? Underground mining ? Tunneling,quarrying ? Quick detail of retract button bit: ? ???Widely used drifting and tunneling ? ???Bit face design is ideal for soft to medium rock formations ? ???With retrac wings to help guide the bit in and out of the hole ? ???Effective in straight hole drilling ? ? ? Specification of retrac button bits ? ? Rock Drill Bits atlas copco button bit Factory: ? ? ? ? ? ? ? ? ? ? ? Quality Drilling tools Manufacturer In China ?-FAQ ? Payment?terms:100% by?TT?, ? Delivery?time:10 days?after?deposit ? Supply ability:1000 pcs per month. ? ? ? If you want to get more information,please contact me. ? Name:Eric Qin? ? Skype id:hargrand163 ? ? ? ? ? ?