Somta Long Series Drill - HSS-E Parabolic Flute - 7.4mm

Meet the Somta Long Series Drill - HSS-E Parabolic Flute - 7.4mm, a deep-hole drilling solution engineered for reliability in demanding metalworking environments. Its extended reach and rugged construction are built to power through thick workpieces while preserving precise hole diameters, making it a trusted choice for professional shops and precision tasks alike.

• Extended reach for deep holes: The long-series design is purpose-built to access deep cavities and through-holes without multiple tool changes, reducing setup time and boosting productivity.
• HSS-E construction for heat resistance: Crafted from High-Speed Steel with cobalt (HSS-E), this drill balances durability and heat management for sustained cutting performance in tough metals.
• Parabolic flute for superior chip evacuation: The parabolic flute profile creates extra room for chips, enabling smoother evacuation and minimizing clogging during deep drilling. This design lowers cutting forces and extends tool life.
• Clean, accurate holes: Sharp cutting edges and robust tip geometry deliver consistent hole diameters and better surface finishes in steel, stainless, cast iron, and other metals.
• Friction and heat management: The flute geometry reduces friction and heat buildup, helping you drill longer between sharpenings and maintain dimensional control in challenging materials.
• DIN 340 / Long Series compatibility: Designed for CNC and heavy-duty machines with industry-standard specs, ensuring reliable performance in industrial settings.

This drill is ideal for metalworking professionals who regularly tackle deep-hole tasks. Use it for through-holes and long-reach drilling in thick plates, blocks, or castings, where a dependable, long-reach tool reduces drudgery and improves throughput. It’s particularly well-suited for applications in automotive fabrication, general mechanical manufacturing, and any project demanding precise, repeatable deep-hole results.

Practical tips for maximizing performance:

• Maintain proper spindle speeds and feeds for HSS-E materials to balance cutting efficiency with tool life.
• Use appropriate coolants or cutting fluids to help flush chips and reduce heat buildup in deep holes.
• Begin with a light, consistent feed and a straight approach; progress slowly to full depth to avoid wandering or snags.
• Withdraw periodically to clear chips and inspect flute condition, ensuring chips aren’t packing the flutes during long plunges.

With the Somta Long Series Drill - HSS-E Parabolic Flute (110) in 7.4mm, you get a purpose-built solution that combines deep-hole capability, durable construction, and chip-evacuation efficiency—designed to keep your workflows moving and your holes accurate.