MXG Internal coolant Hole Indexable High Feed Milling Cutter holder Compatible with Carbide Inserts ENMU100412ZER. MXG Milling Cutter Tools Features. High feed milling design for increased machining efficiency. Indexable insert structure for cost-effective tool maintenance. Strong cutter body for stable cutting performance. Suitable for rough milling and semi-finishing operations. Compatible with common carbide ENMU100412ZER milling inserts. M – Stainless Steel. K – Cast Iron. This tool holder features an. Integrated internal coolant channel structure. Allowing coolant to flow from the machine spindle through the tool holder and directly to the cutting edge of the insert. It is especially suitable for high-intensity, deep-cavity, or continuous cutting applications. Precise cooling:Coolant is delivered directly to the rake face and cutting point, rapidly removing heat, effectively controlling cutting temperature, and minimizing thermal deformation. High-pressure coolant stream works in sync with chip evacuation direction, forcefully flushing the chip path to prevent chip jamming or clogging-ideal for machining difficult-to-cut materials such as stainless steel and titanium alloys. Timely and sufficient cooling reduces thermal cracking and wear rate, with tested tool life increased by over. Maintains excellent heat dissipation and chip removal performance even under high-feed and heavy-depth conditions, ensuring consistent surface finish and dimensional accuracy.