Piloted Counterbore Cutter HSS Flat Bolt Hole Cap Screw 4-Flute Countersink Milling Tool M3-M20 Slot Drill 1pcs

Hign-concerned Chemical : NoneOrigin : Chinais_customized : YesCertification : NoneModel Number : Counterbore CountersinkDIY Supplies : MetalworkingMaterial : High Speed SteelType : Countersink Drill BitUse : Metal DrillingM3.2~M20Application : fillister screw cap

• 【High-quality】: The Counterbore End Mill Cutters is made of hard high-speed steel, with high toughness, wear , and high hardness for high-speed cutting; it is usually used for assembly on a milling machine.
• 【More time-saving】: Countersunk cutters reduce the time to change tools, improve the efficiency of machine actuator movement and save manufacturing time.
• 【Wide range of applications】: Counterbore bit set is suitable for milling of copper, aluminum, steel, cast iron, etc., and can be directly processed or finely processed to heat treatments.
• 【Main purpose】: Countersunk end mill is a specially manufactured tool, mainly used to cut holes that allow bolts or screw heads to be screwed into.
• 【High precision】: The cutting hole and bottom hole of this tool have high alignment accuracy. Because of its high production efficiency, it is often used in the machining industry.