BB Carbide Drill 5xD with External Internal Cooling Inner Through Coolant Hole Parallel Shank 3.1mm 16mm Coated CNC Machine Tool JIN系列 reducing the risk of edge

reducing the risk of edge chipping

reduce fracturing during the milling process while greatly increasing tool life and enhancing finish

Full grinding spiral groove

3 D4 12  50  4T 8  3R0

Brand Name(品牌名称):BB Origin(产地):Mainland China(中国大陆) is_customized(是否定制):YES Model Number(型号):80mm drill DIY Supplies(DIY用品):Metalworking Type(类型):Twist Drill Bit(麻花钻头) Use(用于):Metal Drilling(金属加工) Dia

BB Carbide Drill 5xD with External Internal Cooling Inner Through Coolant Hole Parallel Shank 3.1mm 16mm Coated CNC Machine Tool JIN系列 reducing the risk of edgeBB 5xD Solid Carbide Drill Please note that there are two types of drill bits: internal cooling (with cooling holes) and external cooling (without cooling holes). Please be careful to select when placing an order. Recommended for material hardness within 40RC HI, welcome to BB official store. We are professional manufacturer ,development and production of machining tools. We provide various tools for you . You can follow us and see more. You have free