3Pcs Tungsten Steel End Mill Router Bits | D2.5 x 8 x 4D x 50L x 4F | 4 Flutes CNC Milling Cutter for High - Speed Cutting/Metal Engraving/Industrial Supplies

Produktbeschreibung

Tungsten Steel Material - CNC end mill adopts micro-grain tungsten steel base with 90% higher toughness than standard carbide, engineered for 500+ hours of continuous high-speed cutting in steel and alloys. Consistent Full-Grinding Technology - Each 4-flute end mill undergoes 12-step consistent grinding, delivering smooth cutting edges that maintain sharpness 3X longer than conventional milling cutters. Industrial-Grade Performance - Exclusive D2.5x8mm router bits feature 50L total length with 7mm cutter depth, optimized for CNC machines tackling hardened metals up to HRC65 hardness. Multi-Material Compatibility - Fine carbide construction enables detailed engraving on steel, copper, aluminum and composite materials at 20,000-30,000 RPM speeds with minimal vibration. 3-Pack Value Set - Get industrial-grade replacement end mills (2.5mm shank diameter) with thorough quality testing certification, backed by 30-day performance assurance against breakage.