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1 Lower sound level 2 High penetration rate 3 Excellent flushing,straightness and hole quality Description: Suitable for powerful percussive drills and top hammers with high speed drifter, the products 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. 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.