Omega Products BT40 End Mill Holder With Coolant Channels - G2.5 - 25,000RPM - 20mm Bore Size - 100mm Gauge LengthBT40 End Mill Holders with Coolant Channels are specifically designed to provide efficient cooling and chip evacuation during high speed machining operations. With a maximum speed rating of 25,000 RPM and a precision rating of G2. 5, these holders ensure precise and reliable tool positioning for optimal cutting performance. The integrated coolant channels allow for the direct delivery of coolant to the cutting edge, effectively dissipating heat and