HJ BITS Jiangsu Haojiang Drilling Tools Co., Ltd. is a manufacturer company that mainly produces and sells various types of products such as tri cone bits, single tri cone bits Bullet Teeth for Drilling Bucket, single roller cone bits, steel tri cone bits, PDC bits, milled tooth bits which are used for oil drilling , well, coal field exploration, engineering development and other purposes,, Tricone bits are primarily used for drilling into various formations from soft, medium to hard. They are particularly suitable for hard rock formation. The way a tricone breaks through rock is by using a large number of very small chisel shapes that protrude from the roller. These are pushed into the rock by rods connecting it to the surface and the weight is evenly distributed to break through. These bits are very reliable in changing rock conditions. Drill bits are attachments that are added to the end of the drill string to make the cutting necessary to penetrate the many rock layers between the earth's surface and the oil/gas deposits. Once the hole is drilled, suitable casings can be inserted to seal the wellbore formation. Bits are divided into different categories depending on the drilling process, including the type of formation being drilled and the expected operating conditions. There are two main categories: roller taper bits and fixed edge bits. Roller-Cone bits consist of rotating discs called cones. The hardness of the rock is one of the determining factors that are taken into account when choosing a suitable drill bit. The cutting structure of the bits varies according to the rock formation. Softer formations are drilled with a cone drill with widely spaced, long protruding teeth. While harder formations are drilled with closer spaced and shorter teeth. Cylindrical taper bits are versatile and can cut through many types of formations. A steel gear bit is a type of cylindrical cone bit used to drill into rock with minimal damage to the bit. The bit has three cones mounted in a conical block. Each cone ends in a grinding wheel that resembles a gear wheel with sharpened teeth around the edge. Bit selection is based on the density and hardness of the materials through which the hole is drilled. Steel gear bits range in size from 2 ¼ inches to 36 inches in diameter. Steel tooth bits used for drilling through soft rock formations such as chalk or limestone are longer, slimmer and more spaced than teeth for hard rock formations such as granite. hj bits produce grinding wheels and teeth using precise, numerically controlled milling processes. Steel toothed bits are also known as milled bits, although the manufacturer used a forging process to create the cutting blades. Hj bits provide various types of products such as tri cone bits, single roller cone bits, ball teeth for drilling bucket, single cylinder cone bits, steel gear tri cone bits, PDC bits, milled gear bits and many other types of products that are used in the drilling process by many companies

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