Product: Tungsten Carbide Deep Hole Drill BitsMaterial: Tungsten CarbideType: Imperial,Website:http://www.chinabettool.com, Metric, Non-standardProduct Description:Tungsten carbide deep hole drill bits are designed to be special flute, we will process the drill bits with high grade polishing, and our design is good for removing chips.Our products are designed to be special edge, we process the edge with special way, and it will be cooling fully and high efficiency.It is suitable for processing deep hole, they can process non-ferrous metals and alloys, cast iron and steel.We can process the drill bits according to you requirement, the mini order quantity is 5 pieces.Please tell us your working situation, such as processed material, hardness, diameter, surface roughness, shank types and so on.