LHS offers high quality of tapered drilling equipments, the main products are including tapered chisel bits and tapered button bits tapered drill steel. The products made with high quality of raw material through special heat treatment, various type suitable for afferent work site, Diameter of bits from 28mm to 45mm with 4 \6\7\11\12 degree, tapered drill steel with Hex. 22mm and Hex. 25mm, The deliver capacity are very strong and can completely meet customer's requirements on delivery design, The quality of LHS products are close to the famous brand in the world, the products with comparative advantages of the more prominent cost-effective, exported large quantity to over 20 countries and regions such as Australia Canada U. S. A South Africa etc.