TJR HSS TiN Twist Drill Bit Set 19 Pieces 1-10mm 0.5mm. High quality HSS drills with outstanding high temperature- resistance. Especially for alloyed and unalloyed steels and materials like V2A and V4A. The twist design of these drill bits allows for excellent chip evacuation and reduces the risk of clogging, ensuring smooth and precise drilling results. The 118-degree split point tip enhances drilling accuracy and reduces walking or wandering during the initial contact with the material. These twist drill bits are suitable for drilling through a variety of materials, including metal, stainless steel, alloy steel, and more. The set comes in a sturdy storage case, with labeled slots for each drill bit, keeping them organized and easy to access. The compact case is portable, allowing you to take your drill bit set with you to various work locations.