Product: Tungsten Carbide High Precision Drill BitsMaterial: Tungsten CarbideType: Imperial,Website:http://www.chinabettool.com, Metric, Non-standardProduct Description: Tungsten carbide high precision drill bits are processed by best equipment, the material is from famous material supplier.It is suitable for high precision process machining, we design double edge and you can get more stable than general twist drill bits. It is suitable for process alloy steel, stainless steel, gray iron and other material.If you want to get a non-standard product, we need know as follows:Processed material, hardness, hole tolerance, hole depth, surface finish, and you special requirements.