Carbide bit is a kind of drill bit used in core drilling. The steel cylindrical bit body is named for the carbide cutting tools welded with tungsten carbide. The shape of the carbide cutting tool and its number of insert welding on the drill, the arrangement of the way, insert welding Angle is different, called the bottom edge, the inside edge and the outside edge, in order to ensure that there is a water and powder clearance.
The upper part of the drill body is connected with a core pipe with a wire buckle. A water tank is opened on the side of the drill body and a water outlet is also opened on the bottom lip. The flume and nozzle are used to ensure the flow of washing fluid to remove rock powder and cool the drill bit. In order to increase the clearance when drilling into clay and shale formations, ribs are welded on the inside and outside sides of the hard alloy bit, which is called the rib bit. Needle carbide self - grinding bit can be used in hard - abrasive formations.
Usage and characteristics of carbide drill bit
1, can be suitable for more complex material drilling, can choose higher cutting speed.
2, Select the alloy drill special high-performance alloy blade, effectively reduce the crack, maintain good wear resistance.
3, multi-layer geometric cutting edge, improve discharge performance, keep small cutting resistance.
4, in addition to the commonly used right Angle handle, with a variety of handle types, suitable for a variety of drilling machines, drilling machines.
