HSS Counterbore End Mill Set M3 to M12 Pilot Slotting Tool Countersink End Mills for CNC Router Bits Milling Tool 7 Piece for Metal Steel Aluminum Stainless Steel Plastic Wood

Premium HSS Counterbore End Mill Set for CNC Machining
✔️ 7pc set M3-M12 HSS countersink end mills, 4-flute, robust

These high-speed steel countersink end mills are built for CNC routers, mills, and magnetic drills. The 7-piece set covers M3, M4, M5, M6, M8, M10, M12 and is suitable for cutting ferrous and non-ferrous metals, as well as plastics and wood, whether working on plates or tubes. They feature a precise cutting geometry to ensure accurate alignment of holes for bolt heads and screws inside the workpiece.

✅ Diameter: 6/8/10/12 mm
✅ Material: High-speed steel, 4-flute design for efficient cutting
✅ Set contents: 7 pieces (M3, M4, M5, M6, M8, M10, M12)
✅ Fits standard magnetic drills and machine tool holders
✅ Suitable for ferrous and non-ferrous metals, plastics and wood

💡 What is a countersink end mill used for in metalworking and woodworking?

This handy tool helps create flush seating holes for screw heads with precise depth control. - Used to create countersunk holes for bolt heads in metal, plastic, and wood - Handy for metal, plastic, and wood where flush seating is needed - Reduces tool changes by allowing drilling and countersinking in one pass - Ensures accurate hole alignment and clean surface finish on CNC mills