Four Flute Carbide Square End Mill Pro Grade 4mm Diameter 0.157in Shank CNC Router Bit Micro Grain Cutter For Alloy Steel And Hardened Steel HRC55 TiN Coated

Pro Grade 4mm carbide square end mill with TiN coating
✔️ Single end mill, 4 mm dia, 0.157 in shank, TiN coated

Four-flute carbide square end mill designed for high-precision milling in CNC routers and milling machines. This pro-grade bit handles alloy steels and hardened steels up to HRC55, plus cast iron, wood, plastic, and graphite. Pack size: single piece.

✅ Material: solid tungsten carbide (TC) with TiN coating for heat resistance and wear
✅ Diameter/shank: 4 mm diameter, 0.157 in shank for CNC use
✅ Suitable for HRC up to 55, including alloy steel and hardened steel
✅ Geometry: four-flute square end for side, face, and end milling
✅ Applications: metal, cast iron, wood, plastic, graphite cutting

💡 What is a carbide end mill used for in metalworking?

Handy tool for shaping hard materials with CNC mills and routers.

- Handy for roughing and finishing in carbon steel, alloy steel, and hardened steel
- TiN coating boosts heat resistance and extends tool life
- Four-flute square nose geometry provides good chip control and finish
- Ideal for high-hardness materials and precise contouring on CNC machines