The Somta Extra Long Series Drill - HSS-E Parabolic Flute - 6mm x 260mm is built to conquer deep-hole tasks with precision and reliability. When holes need to go where standard drills can’t reach, this extra-long drill delivers clean, accurate results without compromising rigidity or control.

• Exceptional reach for deep holes. At 260mm overall length, this drill lets you access hard-to-reach workpieces, blind pockets, and through-holes without repositioning the setup or swapping to shorter tools.
• HSS-E construction for durability under pressure. High-Speed Steel enhanced with optimized alloying delivers superior heat resistance and longer tool life, even in demanding materials.
• Parabolic flute for efficient chip evacuation. The parabolic flute geometry accelerates chip removal, minimizes clogging, and reduces heat buildup—helping you maintain cutting efficiency over extended drilling passes.
• Sharp cutting edges and stable geometry. Precise, clean entry and controlled cutting action produce true holes with minimal misalignment, while the flute design lowers friction and wear during deep drilling.
• Broad material compatibility. Ideal for drilling into steel, aluminum, and certain non-ferrous substrates, making it a versatile choice for machine shops, maintenance departments, and DIY enthusiasts tackling thick materials.
• Consistent performance in progressive projects. From prototype work to production runs, the long flute and robust core balance stiffness with the ability to push through longer workpieces without chatter.

This drill is purpose-built for professionals who demand precision in deep-hole applications—where standard-length tools fall short and hole quality matters as much as productivity. It shines in automotive assemblies, mold making, aerospace components, and any project requiring deep, straight, deburred holes with reliable repeatability.

Use cases and scenarios

• Creating or finishing deep pockets and channels in automotive components.
• Deep-hole work in aluminum housings or similar non-ferrous parts requiring clean hole walls.
• Prototyping or production setups where tool life and hole quality drive throughput.

Practical tips for best results

• Use a peck drilling technique to break up chips and maintain steady cutting action in deep holes.
• Apply appropriate cutting fluid or coolant to manage heat, especially on tougher materials.
• Securely clamp the workpiece and align the drill to minimize deflection and ensure straight, true holes.
• Match the spindle speed and feed rate to the material and depth to maximize tool life and hole quality.