11.2mm VHM TiAlSiN Coated Thru Coolant 5XD Drill

About this item:

• Solid Premium Micro Grain Tungsten Carbide with TiAlSiN-S Coating
• For high performance machining in a wide variety of materials, such as carbon and alloy steels up to 1400N/mm2
• Also suitable for use in Stainless Steel (INOX) and Aluminiun
• 3×D and 5×D options available in solid and thru-coolant variants
• TiAlSiN (Titanium Aluminum Silicon Nitride) is an advanced, ultra-hard PVD coating designed for high-performance machining, providing superior thermal stability, oxidation resistance, and wear resistance.
• TiAlSiN typically operates at high temperatures (up to 900ºC or higher), making it ideal for dry, high-speed machining of hardened materials, stainless steel, and aerospace alloys.
• A thru coolant drill, often referred to as an internal coolant drill, is designed with one or more internal channels that allow coolant to pass through the body of the tool and exit at the cutting edges.
• Unlike conventional flood cooling, where fluid is applied from the outside, this design directs coolant precisely to the cutting interface—between the tool and the material. This targeted delivery is especially beneficial in more demanding machining conditions.
• By delivering coolant directly to the cutting zone, these drills provide superior temperature control. This is particularly important when working with difficult materials such as stainless steels, alloy steels, and titanium, where excessive heat can quickly build up.
• Chip evacuation is another critical advantage. In deep hole drilling, trapped chips can compact inside the hole, leading to increased heat, tool wear, and potential breakage. Thru coolant drills continuously clear chips from the cutting area, preventing this issue.
• The combination of reduced heat, lower friction, and effective chip removal helps extend tool life significantly. It also allows operators to increase cutting speeds, feed rates, and depth of cut with greater confidence.
• Additionally, cooling at the cutting edge helps limit thermal expansion of the workpiece, reduces the formation of burrs and built-up edge, and supports improved dimensional accuracy and surface finish.