KKmoon 7pcs/set Counterbore Set M3-M12 High Quality

A set of counterbore end mill that is very good quality and works well.Features:High speed steel high quality and durable.The counterbore set works great in counter bored hole.It includes 7 sizes in one counterbore set(M3 M4 M5 M6 M8 M10 M12).An essential hardware tool for industrial.Apply to cast iron steel copper aluminum conventional hardness of stainless steel and die steel etc.Specifications:Material: High-speed steelDrill Quantity: 7pcsDrill Size: M3 M4 M5 M6 M8 M10 M12Package Weight: Approx. 303g / 10.69ozPackage Size: Approx. 10 * 7 * 4cm / 3.94 * 2.75 * 1.57inPackage List:7 * Counterbore End Mill