• without coated single flute with coolant Gun drill

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    Single-edged gun drill (hereinafter referred to as gun drill) is used to process deep holes with a diameter of Φ1~40mm and a length-to-diameter ratio of 100~250 times. It is currently the only method for processing small diameter deep holes with a diameter of Φ1~6mm. The accuracy of machining holes can be stabilized at IT 8~10, and individual ones can reach IT6~7; the surface roughness can be stabilized at Ra12.5~3.2μm (▽3~▽5), and individual ones can reach Ra0.8~ 0.4μm (▽7~▽8), the straightness of the hole can reach 0.05mm/m. Gun drills have a wide range of applications. In addition to processing ordinary steel materials and castings, they can also process soft metals, alloy steels, stainless steels, and heat-resistant steels.
  • Imported gun bit and tool rod tungsten carbide gundrill tool

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    Gun drills are straight fluted drills which allow cutting fluid to be injected through the drill's hollow body to the cutting face. They are used for deep drilling—a depth-to-diameter ratio of 300:1 or more is possible. Gun barrels are the obvious example; hence the name. Other uses include moldmaking, diemaking, and the manufacture of woodwindmusical instruments, such as uilleann pipes, as gun drills can drill long straight holes in metal, wood, and some plastics. The coolant provides lubrication and cooling to the cutting edges and removes the swarf or chips from the hole. Modern gun drills use carbide tips to prolong life and reduce total cost when compared with metal tips.
  • Single flute With coolant Gundrill

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    gun drill use on metal cutting industries including automotive, aircraft and aerospace, construction, medical, mold and tool and die, hydraulics, pneumatics, and more.
  • Brazed Gun Drills

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    Gun drill is a specialized cutting tool used in gun drilling machine. Drillstar ’s brazed  single flute gun drills have following properties: Diameter range: 3 – 40mm Overall length:  5000mm (maximum) Single fluted type is the most common type. And the most widely used. Contains one-piece carbide drill bit and steel drill bit with carbide inserts. The tube and shank are made of steel material. And through heat treatment. The three parts are brazed to be a complete tool. Drillstar sells gun dr...
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