High-Precision CNC Tool Holders – BT40-ER25/ER32 Series

Ultra-Durable Construction
Made from premium 20CrMnTi alloy steel, heat-treated for superior hardness and wear resistance. Precision-ground surfaces ensure flawless concentricity (<0.005mm) for vibration-free machining.
Versatile ER Collet Compatibility
Seamlessly fits ER25/ER32 collets (included), gripping drill bits, end mills, and taps from 1-16mm (ER25) or 1-20mm (ER32). Perfect for high-speed milling, drilling, and tapping.
BT40 Taper for Rigidity
Standard BT40 taper with 7:24 ratio maximizes stability in heavy-duty CNC machining centers. Ideal for aerospace, automotive, and mold-making industries.
Optimized Coolant Flow
Integrated coolant channels (optional) extend tool life by reducing heat buildup during prolonged operations.
Global Wholesale Advantage
Direct factory pricing, bulk discounts, and worldwide logistics support. Stock up on professional-grade tooling at unmatched value.
Typical Applications
- Precision metalworking (aluminum, steel, titanium) - High-speed CNC milling & engraving - Industrial prototyping & production runs Upgrade your workshop with OEM-quality tool holders – engineered for accuracy, built for endurance.