The Somta Extra Long Series Drill - HSS-E Parabolic Flute - 5.5mm x 260mm is purpose-built for deep-hole precision in metalworking. Designed to reach long workpieces with ease, this drill delivers reliable, clean holes in a single pass where depth and reach matter most.

Key benefits that matter in everyday machining:

• Extended reach for deep holes: with an overall length of 260 mm and a flute length around 180 mm, it tackles long through-holes without re-fixturing. This extra reach is especially valuable in automotive, hydraulic, and mold-making applications where access is limited.
• HSS-E durability and heat resistance: built from high-speed steel enhanced for tougher cutting conditions, this drill maintains sharpness and life under sustained drilling heat.
• Parabolic flute for efficient chip evacuation: the parabolic flute geometry channels chips away from the cutting edge, reducing clogging and heat buildup to maintain steady cutting performance in deep holes.
• Optimized for deep-hole depths in steel: designed to drill deeper in a single pass, with practical drilling depths approaching 20xD in appropriate steel alloys, minimizing interruptions for pecking and coolant reapplication.
• Consistent hole quality with a straight shank: the straight shank provides reliable grip and repeatable alignment in standard drill chucks, improving accuracy across multiple setups.
• DIN-standard construction for compatibility and reliability: built to meet industry standards for deep-hole drilling tools, ensuring dependable performance in professional shops.

Ideal for operators who need to drill long, precise holes in steel, cast iron, and other common metals without frequent tool changes. The 5.5 mm diameter strikes a balance between rigid cutting action and versatile hole sizing, making this drill a staple for deep-hole projects, from prototype work to production runs. When you need reach, reliability, and clean, accurate results in demanding deep-hole tasks, the Somta Extra Long Series Drill stands ready to perform.