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Production Introduction:
1.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 drills with long life to save up fuel cost rate.
2.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.
3.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.
4.different grades for different applications
