NT40 ER40 Collet Chuck Holder CNC Milling Machine Tool Industrial Accessories High Precision Wear 40Cr Alloy Steel For CNC Machining Centers Engraving Machines

Item Type: Collet Chuck HolderMaterial: 40cr alloy steelModel: NT40 ER40Rear Drawing Thread: M16Tail Hole Diameter: Approx. 16mm / 0.63inStructure Type: IntegralAccuracy: 0.003Scope of Application: CNC machining centers, engraving machines, fine engraving machines and other high speed machinesPackage List：1 x Collet Chuck Holder1 x Wrench

• [INDUSTRIAL-GRADE DURABILITY] Engineered from premium 40Cr alloy steel, this collet chuck holder delivers unmatched wear resistance and long-lasting performance. The hardened steel construction maintains dimensional stability even under extreme machining conditions, ensuring consistent accuracy throughout extended use.
• [PRECISION-GROUND SURFACE] Every component undergoes meticulous grinding for superior surface finish and tight tolerances. The precisely machined shank and taper provide concentricity (0.003mm accuracy), minimizing vibration and guaranteeing smooth, chatter-free operation during high-speed milling applications.
• [HEAT-TREATED TOUGHNESS] Our advanced vacuum quenching process enhances both surface hardness (HRC 45-50) and core toughness. The black oxide treatment further improves wear resistance while preventing , making this holder ideal for both dry and wet machining environments.
• [ENGINEERED FOR STABILITY] The one-piece construction eliminates weak points and provides exceptional rigidity. Pressure is evenly distributed across precision needle rollers, allowing for heavy cuts without deflection. This robust design handles up to 10,000 RPM while maintaining tool integrity.
• [VERSATILE COMPATIBILITY] Designed for seamless integration with NT40 spindle machines, this holder works perfectly with ER40 collets (1-26mm capacity). Includes a matching wrench for quick tool changes, making it ideal for CNC machining centers, engraving machines, and precision milling operations.