During the production and manufacture of cemented carbide bit, the main cutting edge of the bit will produce many burrs, so the burrs are fine. Under a hundred times microscope, the cutting edge of the bit will be serrated. If not removed, it is easy to produce the phenomenon of jumping edge falling

cemented Carbide left-hand drill, the biggest feature is high hardness, wear-resistant, long service life, the disadvantage is brittle, easy to break. High-speed steel left-hand drill is characterized by good toughness, HIGH-COBALT M42 material manufacturing hss steel left-hand drill has a higher hardness, the use of appropriate cutting dosage and smaller hole diameter on the use of automatic lathe drilling more reliable. All these two kinds of left drills have their own characteristics and can be selected flext-hand drill and HSS steel left-hand drill is often somewhat hesitant. The following is a brief int

Hard alloy rail hollow drill bit, rail drill bit and rail track drill bit are commonly used in specifications of 21mm and 31mm, and some special rail rails are also used in specifications of 22, 24, 26, 28, 32mm, etc.



Hard rail hollow drill bits have high hardness, hardness HRA92-93, and are not

ANNULAR CUTTERS Widely used in railways, bridges, ship building, boilers, machinery manufacturing, environmental protection, oil and gas pipline industries. Annular Cutters are perfect for making holes in metal pipes and tubes because their design minimizes damage to the metal. Specially for cutting

High performance more easily and improve the loading bucket bucket loading coefficient; locking clutch torque converter to achieve large margin traction and speed ramp.Compared with the H series, fuel consumption reduced by 10%, the economic model optimization, the most fuel-efficient and minimal im