M5 Straight Shank Counterbore End Mill 4 Flute HSS End Milling Tool Set 2 Pieces 8mm Shank 9.5mm Cutting Edge 5.2mm Guidepost 51mm Overall Length For Precision Metalworking
✔️ 8mm shank, 9.5mm cutting edge, 5.2mm guidepost, 51mm OAL, 2pcs
The M5 straight shank counterbore end mill set is built from High-Speed Steel (HSS) and features 4 flutes for smoother finishes on side walls. With a guidepost diameter of 5.2 mm (0.21 in) and a cutting edge diameter of 9.5 mm (0.37 in), these tools deliver precise countersinking and spot-facing with clean bottoms. The 8 mm shank (0.32 in) and overall length of 51 mm (2.01 in) make this 2-piece set ideal for CNC or manual milling in aluminum, steel, and other alloys.
✅ Material: High-Speed Steel (HSS) for toughness and impact resistance
✅ Number of cutting edges: 4 for smoother finishes on side walls
✅ Guidepost diameter: 5.2 mm (0.21 in)
✅ Cutting edge diameter: 9.5 mm (0.37 in)
✅ Shank diameter: 8 mm (0.32 in)
✅ Overall length: 51 mm (2.01 in)
✅ Pack size: 2 pcs
💡 What is a countersink end mill used for in metalworking? This handy tool creates flush seats and flat-bottom pockets for screw heads in metal parts. The rugged HSS construction helps resist chipping during intermittent cuts and on less rigid machines.
- Handy for precise countersinks and flat-bottom pockets - Great for seating screws and finishing edges in metal - Works with CNC and manual milling setups for metalworking