Somta Long Series Drill - HSS-E Parabolic Flute - 9.4mm

The Somta Long Series Drill - HSS-E Parabolic Flute - 9.4mm is engineered for serious deep-hole tasks, delivering precision where standard bits falter. With its extended reach, this drill easily penetrates thick workpieces, making it the reliable choice for through-thickness drilling and complex assemblies.

Why this drill stands out

Constructed from HSS-E (High-Speed Steel Enhanced), it combines exceptional durability with superior heat resistance. The parabolic flute design accelerates chip evacuation and lowers cutting forces, which translates to smoother feeds, less tool chatter, and extended tool life. Sharp cutting edges deliver clean, true holes with minimal finishing required, even in demanding materials.

Key benefits

• Extended reach for deep-hole drilling, enabling through-thickness work without repositioning the part.
• Efficient chip evacuation thanks to the parabolic flute, reducing clogging and maintaining steady penetration.
• Lower cutting forces and reduced heat buildup, improving reliability on tough metals.
• Precise hole quality with clean edges and consistent diameters for tight tolerances.
• Durable HSS-E composition that withstands repeated drilling cycles in demanding environments.

Ideal uses and scenarios

This drill is perfect for metalworking shops, maintenance teams, and fabrication environments where deep, accurate holes are a must. Use it for automotive components, equipment housings, and multi-layer assemblies where access is limited and precision matters. The 9.4 mm diameter provides a balanced blend of aggressive material removal and controlled accuracy, making it a dependable choice for mid-sized deep-hole jobs.

Practical tips for best results

• Employ steady peck drilling to clear chips and prevent re-cutting or clogging in long holes.
• Use appropriate lubrication to minimize heat and extend tool life.
• Secure the workpiece firmly and start with a precise center punch to reduce wandering at entry.