Features Flutter- Deburring: Achieve and smooth deburring with this countersink deburring drill bit taper, ensuring professional results in your projects. Prevents Clogging: Crafted with 90° HSS content, this countersink deburring hole cutter features a groove chip removal design to prevent workpiece clogging, ensuring uninterrupted work. Optimal Cutting Speed: Experience superior performance at low cutting speeds for steel, wood, plastic, and light metals, making this countersunk head chamfering tool versatile and efficient. Quick and Easy : This 4pcs set of countersink deburring drill taper and chamfering tools allows for quick and easy cutting of metal, wood, and plastic, enhancing productivity. Versatile Specifications: The package includes 4 different specifications of countersink deburring drill bits, catering to various usage needs for your projects. Features: 1、Flutter Deburring: This drill bit taper is used for flutter deburring and slotted taper of countersinks, very practical and useful 2、Prevent From Clogging: Made of 90° HSS content, through groove chip removal can prevent chips from clogging the workpiece 3、Low Cutting Speeds: This hole cutter can get best results at low cutting speeds of steel, wood, plastic and light metals 4、Quickly And Easily: 4pcs counterbore and deburring tool set is for cutting metal, wood, and plastic quickly and easily 5、4 Different Specification: There are 4 specifications contain in the package, which is suitable for different using needs Specification: Item Type: Countersink Deburring Drill Bit Material: High speed steel Applicable Pore Size(approx.): 2 ~ 5mm / 0.08 ~ 0.2in 5 ~ 10mm / 0.2 ~ 0.39in 10 ~ 15mm / 0.39 ~ 0.59in 15 ~ 20mm / 0.59 ~ 0.79in Uses: Steel, wood, plastic and light metal Package List: 4 x Countersink Deburring Drill Bit Package List 4 x Countersink Deburring Drill Bit