Tungsten carbide gun drills, it is a kind of deep hole drills, used advanced and efficient hole machining techniques. 

It can be used not only to machine deep holes (diameter to length ratio 1:250), but also shallow holes (diameter to length ratio 1:1) , carbide tips is welded on tool shank. 

Carbide gun drill is suitable for drilling cast iron, carbon steel, copper, aluminum alloy and alloy steel machining. including drilling, boring and reaming at one time, 

with high precision grade IT6~8, straightness with 0.16-0.33mm/1000mm and good surface roughness Ra3.2~Ra 0.1. Its drilling speed reaches 30-100 m / min or better. 

it is widely used in shipbuilding, automobiles, engines, locomotives, chemical machinery, oil nozzle pumps, mining machinery and hydraulic parts.

Customized drawings and samples are welcomed!