Meet the Somta Extra Long Series Drill - HSS-E Parabolic Flute, 9.5 mm x 320 mm. Built for deep-hole drilling, this drill combines exceptional reach with dependable performance, letting you penetrate thick workpieces with precision and consistent hole quality. The HSS-E construction delivers outstanding heat resistance and long tool life, so you can tackle demanding jobs with confidence.

Why this drill excels for deep drilling

• Extra-long reach at 320 mm overall length enables access to deep cavities and recessed holes that standard drills can’t reach.
• HSS-E construction provides superior heat resistance and extended tool life, making it well-suited for high-temperature drilling and tougher metals.
• Parabolic flute design optimizes chip evacuation, dramatically reducing chip buildup and clogging that can stall a drill in deep holes.
• Sharp cutting edges deliver clean, accurate holes with minimal burrs, producing reliable hole sizes essential for precision assemblies.
• Low-friction flute geometry minimizes friction and heat generation during drilling, helping maintain tip integrity and consistent performance over time.

Ideal use scenarios

Perfect for metalworking tasks that demand depth and reliability, such as creating deep pilot holes in steel, stainless steel, cast iron, and aluminum components. Whether you’re fabricating machinery, performing mold and die work, or preparing parts with through-holes in tight spaces, this drill keeps a straight, true path with reduced wandering.

Practical tips for best results

• Use a steady feed rate and avoid aggressive plunging to preserve the sharp cutting edges during deep-hole drilling.
• Consider peck drilling with short retracts to clear chips and prevent chip packing inside the flute.
• Apply appropriate coolant or lubrication to manage heat buildup, especially when drilling harder metals.
• Ensure the drill is properly secured in a chuck or collet to maintain alignment and minimize runout on long-reach tasks.
• Regularly inspect the flute and tip for signs of wear; replace when cutting performance declines to maintain hole accuracy.

Distinctive value in one long, reliable tool

What sets the Somta Extra Long Series Drill apart is its thoughtful balance of reach, rigidity, and efficient chip management. The combination of an extended 320 mm length with HSS-E material and a parabolic flute delivers deeper holes with cleaner finishes, fewer interruptions, and longer tool life compared with standard-length alternatives. It’s the go-to choice when your project demands extended reach without compromising hole quality.

Engineered for professionals who demand consistency from every deep-hole drill, the Somta Extra Long Series Drill - HSS-E Parabolic Flute, 9.5 mm x 320 mm, is ready to handle your most challenging metalworking tasks.