Meet the Somta Extra Long Series Drill — HSS-E Parabolic Flute, a precision deep-hole solution engineered for long reach and dependable performance. At 13 mm in diameter with a 480 mm flute length, this drill is purpose-built to access hard-to-reach areas without compromising hole quality.

Designed for demanding metalworking tasks, the HSS-E (High-Speed Steel - Enhanced) construction delivers robust wear resistance and reliable heat tolerance, extending tool life in challenging materials and extended-cut applications. The parabolic flute geometry creates extra space for chips to evacuate efficiently, dramatically reducing clogging and minimizing heat buildup during deep drilling.

• Ultra-long reach: 480 mm flute length lets you drill deep holes in long workpieces, brackets, and assemblies where standard drills can’t reach.
• Parabolic flute efficiency: optimized chip evacuation keeps cuts smooth and steady, supporting consistent hole diameter even at greater depths.
• Durable, heat-resistant steel: HSS-E construction stands up to extended drilling sessions, preserving cutting edges and reducing downtime.
• Clean, precise holes: sharp cutting edges and stable flute geometry yield clean entrances and minimal burrs, elevating finish quality in automotive, machinery, and fabrication workflows.
• Versatile deep-hole capability: ideal for through-holes and long blind bores across steel, stainless steel, aluminum, and cast iron components.

In practice, this drill shines in scenarios where deep access is essential: repairing long channels in engine components, crafting precise long-through holes in frames, or servicing long fixtures where standard bits falter. Pair it with appropriate feeds and speeds, and employ peck drilling to maintain chip clearance and straightness through the full depth of the bore.