Tapered button bits are made with high quality of raw material through special heat treatment ,especially, tungsten carbide of tapered button bits widely applied in Hand Hold ( short-hole) drilling system for dimensional stone quarrying. At now, we are exporting the huge qty of Q7-38-1122-50,Q7-40-1122-50 for South America market.
Comparing with tapered chisel bits and tapered cross bits, button bits has higher technology, much longer primary drilling time and higher drilling efficiency, so that the button bit is popular among the users.
Diameter of bits from 30mm to 50mm with 4 、6、7、11、12 degree, premium alloy tapered drill steel with Hexagonal .22mm and Hexagonal.25mm, The deliver capacity are very strong and can completely meet customer’s requirements on delivery design, number of buttons is 4, 5, 6, 7, 8 , 9, 7 buttons is very popular for hold held (short holes ) and blast drilling system.
One more, our all tapered bits is Ideal for short hole drill & blast, as well as roof bolting applications, our hand-held system is comprised of premium alloy tapered hexagonal drill steels ranging from 0.5 m up to 7.9 m in length, and complimented by a complete range of reamers, blade and button bits.
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