Specification Brand : MBHALBY BulletPoint1 : If you need 3-30mm Diameter 800mm-1000mm length. BulletPoint2 : If you need 10mm-20mm Diameter 300mm Length. BulletPoint3 : Gun drills are straight fluted drills which allow cutting fluid to be injected through the drill's hollow body to the cutting face. BulletPoint4 : They are used for deep drilling-a depth-to-diameter ratio of 300:1 or more is possible. BulletPoint5 : Shank size have 25x70mm / 19.05x70mm / 10x40mm / 16x50mm / 20x50mm etc. BulletPoint6 : Applicable Liquid : Coolant, cutting fluid, alcohol, machining oil, water Color : One Color ExternallyAssignedProductIdentifier : 7038951625211 ItemName : Deep Hole Gun Drill Bit Drilling Head Bit 2mm-35mm Diameter CNC Inner Coolant Cutting Tool V-Shape Carbide(5x800mm) ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : cutting-tool-coolants Manufacturer : MBHALBY ModelName : MBHALBY ModelNumber : MBHALBY NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPieces : 1 PartNumber : MBHALBY ProductDescription : If you need 3-30mm Diameter 800mm-1000mm length. If you need 10mm-20mm Diameter 300mm Length. 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,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 to prolong life and reduce total cost when compared with metal . Shank size have 25x70mm / 19.05x70mm / 10x40mm / 16x50mm / 20x50mm etc. ProductSiteLaunchDate : 2025-02-22T10:54:46.381Z Size : 5x800mm UnitCount : 1 UnspscCode : 40141700