DRILLSTAR CARBIDE TOOLS ARE WORKING IN MANY PLACES AROUND THE WORLD
Gun drills are drill bits with straight flutes that allow cutting fluid (compressed air or a suitable fluid) to be injected into the cutting surface through the hollow body of the drill bit. They are used for deep drilling - where the depth to diameter ratio can be 300:1 or higher. The barrel of a gun is an obvious example; hence the name. Other uses include mold making, stamping, and the manufacture of internal combustion engine parts (e.g., crankcases, cylinder heads) and woodwind instruments (e.g., air ducts), as gun drills can drill long straight holes in metal, wood, and some plastics. Coolant lubricates and cools the cutting edge and removes chips or chips from craters. Modern gun drills use carbide tips to extend service life and reduce overall costs compared to steel tips. Drilling speed depends on the material being drilled, RPM, and the diameter of the drill; a high-speed drill can cut a hole in P20 steel at 30 inches per minute.
Gun drilling can be performed on many types of machines. On a lathe, this usually applies when the hole depth is less than 50 diameter. There are also special gun drill presses that can drill longer aspect ratios.
Gun drills are drill bits with straight flutes that allow cutting fluid (compressed air or a suitable fluid) to be injected into the cutting surface through the hollow body of the drill bit. They are used for deep drilling - where the depth to diameter ratio can be 300:1 or higher. The barrel of a gun is an obvious example; hence the name. Other uses include mold making, stamping, and the manufacture of internal combustion engine parts (e.g., crankcases, cylinder heads) and woodwind instruments (e.g., air ducts), as gun drills can drill long straight holes in metal, wood, and some plastics. Coolant lubricates and cools the cutting edge and removes chips or chips from craters. Modern gun drills use carbide tips to extend service life and reduce overall costs compared to steel tips. Drilling speed depends on the material being drilled, RPM, and the diameter of the drill; a high-speed drill can cut a hole in P20 steel at 30 inches per minute.
Gun drilling can be performed on many types of machines. On a lathe, this usually applies when the hole depth is less than 50 diameter. There are also special gun drill presses that can drill longer aspect ratios.
