Omega Products HSK63F Face Mill Arbor with Through Coolant is a precision toolholder designed for high-speed milling in demanding metalworking environments. It delivers coolant directly to the cutting edge and is engineered for speeds up to 25,000 RPM, providing strong clamping and reliable rigidity through the HSK63F taper. With a 16 mm interface and 45 mm gauge length, this arbor fits a wide range of Weldon or ISO 3937 (DIN 6359) flat-shank face mills, enabling flexible integration into existing setups and promoting efficient coolant delivery and extended tool life. Through Coolant Delivery: Direct coolant to the cutting edge improves chip evacuation, reduces heat buildup, and extends tool life for demanding milling tasks. G2.5 Balanced, Rigid HSK63F Taper: Precision, stability, and reduced vibration at high speeds up to 25,000 RPM for consistent finishes and reliable performance in heavy-duty operations. Wide Compatibility and Secure Mounting: Compatible with Weldon or ISO 3937 (DIN 6359) flat shanks; optimized 16 mm interface and 45 mm gauge length for quick, secure setup and broad tooling versatility. By combining direct-through coolant, high-speed capability, and a rigid HSK63F interface, this arbor helps you cut faster with less downtime, achieve cleaner toolpaths, and extend tool life in roughing and finishing applications. The robust balance and compatibility reduce setup time and tool-change frequency, delivering more consistent results across sessions and contributing to improved overall productivity in milling operations.