Somta Long Series Drill - HSS-E Parabolic Flute - 7.1mm

Meet the Somta Long Series Drill - HSS-E Parabolic Flute - 7.1mm, a purpose-built solution for penetrating thick materials with precision and endurance. Designed for deep-hole tasks, this drill delivers consistent hole quality from start to finish, even in challenging workpieces.

Why the Somta Long Series drill stands out for deep-hole work

• HSS-E construction combines the toughness of high-speed steel with enhanced heat resistance, enabling reliable performance under demanding drilling conditions and extended tool life.
• Parabolic flute design accelerates chip evacuation and reduces cutting forces, helping to prevent clogging and maintain steady progress in thick workpieces.
• Long length geometry provides the reach needed for deep holes without sacrificing rigidity, making it ideal for through-thick components, plates, and blocks.
• Sharp cutting edges deliver clean, precise holes with minimized burr formation, improving downstream machining and assembly results.
• Flute geometry that minimizes friction reduces heat buildup, supporting cooler cuts and longer tool life even at higher feed rates.
• Re-sharpenable design offers a cost-effective, long-term solution for frequent users who demand reliability from a single drill for many jobs.

Use cases and practical applications

This 7.1mm drill is well-suited for drilling deep holes in thick steel plates, alloyed metals, aluminum blocks, and other demanding materials where hole straightness and finish matter. It’s a dependable choice for automotive fabrication, fixture builds, manufacturing jigs, and metalworking projects that require through-holes with consistent diameter and minimal deviation.

How this drill helps you work smarter

• Reduce downtime with faster chip clearance thanks to the parabolic flute, so your feed can stay steady without overheating.
• Achieve smoother hole entrance and exit surfaces, thanks to sharp edges and controlled cutting action.
• Keep tool costs lower over time through the long-series design that stands up to repeated deep-hole drilling tasks.
• Maintain accuracy in challenging materials by pairing proper cutting fluid and appropriate spindle speed with the drill’s robust geometry.

Who benefits most

Machinists, fabricators, and workshop professionals who routinely drill deep holes in thick or tough materials will notice improved hole quality, longer tool life, and more consistent performance with the Somta Long Series Drill - HSS-E Parabolic Flute. It’s also a smart upgrade for shops aiming to standardize on a single, reliable deep-hole drill that handles a range of metals with ease.

Specs to guide your setup: 7.1mm diameter, HSS-E construction, long-series length, parabolic flute geometry. For best results, pair with appropriate cutting fluid, maintain steady feeds, and ensure proper work-holding to maximize hole accuracy and tool life.