HSS End Mill Cutter For Corner Rounding 4 Flute Straight Shank Mold Milling Tool R12.5 Radius 12mm Cutting Edge Diameter 25mm Cutting Edge Length 36mm Shank Diameter 85mm Overall Length Boss Grade Smooth Chip Removal

HSS Corner-Rounding End Mill, 4-Flute, 12mm Dia
✔️ 1pc, R12.5mm radius, 12mm dia cutter, 36mm shank, 85mm length

This high-speed steel end mill is engineered for precise corner rounding in molds and tooling. Ideal for internal arcs and edge relief on CNC and manual mills, it delivers clean surfaces with minimal tool marks.

✅ Material: High-Speed Steel (HSS) for wear resistance and toughness
✅ Number of cutting edges: 4 for stable, clean cuts
✅ Arc radius: R12.5mm (0.492 in) for tight corner rounding
✅ Cutting edge diameter: 12mm (0.472 in) for precise edge control
✅ Cutting edge length: 25mm (0.98 in) to reach deep corners
✅ Shank diameter: 36mm (1.417 in); Overall length: 85mm (3.346 in)
✅ Chip removal and flute geometry optimized for smooth operation

💡 What is an HSS end mill used for in corner rounding and mold milling?

Handy tool for shaping internal arcs and achieving smooth finishes on mold components.

- Great for precision corner rounding in metal, plastic, and resin parts - Works with CNC or manual mills for clean edge relief - Helps reduce tool marks and improve surface finish in molded parts