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Beijing Prodemo Industries Ltd is a professional China-based taper drilling tool manufacturer approved by ISO9001:2000. Our mainlu drill and enviromentally and have high quality and low price. Thus,they have attracted many clients from all over the world.
tapered button bits are from Boart long year, widely applied in Hand Hold ( short-hole) drilling system for dimensional stone quarrying. At now, we are exporting the huge qty of Q7- 33- 7 22-80 , Q9 -45 -12 22- 71 for Indian quarry and Norway, Finland quarry.
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.
Also, we can supply brazed button bit taper type at competitive rate for granite and marble etc quarries.
Product features:
Premium designs and steel and premium tungsten carbide insert grade T6 supplied by Boart Long year, Offers industry-leading strength and penetration rates for more productivity,Excellent straightness and hole clean quality, Get max.drilling performance for rock drill with long life to save up fuel cost rate.