Pro Grade HSS Cobalt Counterbore End Mill For Hole Expansion 4 Flutes 4 X 7.4mm Rugged Boss Level Chip Removal And Smooth Cut For Low Carbon Steel And Non Ferrous Materials

Single Pack HSS Cobalt Counterbore End Mill for Holes
✔️ 4-flute counterbore: Ø4.0mm (0.16"), Ø7.4mm bore (0.29"), L=48mm

This counterbore end mill is designed for hole expansion and bolt seating, typically used in metal fabrication, drilling, and milling operations. It delivers clean finishes on low carbon steel and non-ferrous materials.

✅ Diameter: 4.0 mm (0.16")
✅ Cutting diameter: 7.4 mm (0.29")
✅ Shank diameter: 6.0 mm (0.24")
✅ Overall length: 48.0 mm (1.89")
✅ Number of flutes: 4
✅ Material: HSS cobalt (HSS-Co)
Package: 1 x Counterbore End Mill

💡 What is a counterbore end mill used for in metalworking? This handy tool is used to enlarge and finish holes to accept fasteners and seating surfaces. - hole expansion for bolt seating and flush mounting - works with low carbon steel and non-ferrous materials - four-flute design aids chip evacuation and smooth cutting