Somta Extra Long Series Drill - HSS-E Parabolic Flute - 4.5mm x 235mm

Somta Extra Long Series Drill - HSS-E Parabolic Flute - 4.5mm x 235mm

When deep reach is non-negotiable, the Somta Extra Long Series Drill delivers precise holes where shorter bits fall short. This 4.5 mm diameter drill bit (235 mm overall length) is purpose-built for deep-hole drilling tasks in metalworking, fabrication, and maintenance applications. Its extended length minimizes the need to reposition workpieces mid-task, helping you complete challenging projects faster with fewer tool changes.

Engineered for reliability, the HSS-E (High-Speed Steel – Enhanced) construction stands up to heat and wear, extending tool life even in demanding materials. This means fewer tool changes and more consistent results across long drilling runs.

The parabolic flute design is a standout feature that matters in real-world use. It optimizes chip evacuation, moving debris away from the cutting edge to reduce clogging and heat buildup. The result is steadier starts, smoother drilling, and cleaner hole quality—especially important when drilling by depth in thicker sections or multi-layer assemblies.

Key advantages in practice:

• Extended reach for deep holes: 235 mm length lets you access pockets, blind holes, and thick workpieces without re-clamping or repositioning.
• Durable HSS-E construction: resilient to heat and wear, delivering longer tool life and dependable performance over extended drilling sessions.
• Efficient chip evacuation with parabolic flutes: minimizes friction and heat at the cutting edge, promoting smoother drilling and less burr formation.
• Precision-ground cutting edges: delivers clean, accurate holes with improved hole finish and dimensional consistency.

Ideal for professionals and hobbyists who routinely tackle deep-hole work in steel, aluminum, cast iron, and other common metals, this drill is compatible with drill presses and CNC machines that require an extended-reach solution. It’s the reliable choice when you need one bit that can handle long, uninterrupted drilling cycles without compromising hole quality.

Practical tips for optimal results: secure the workpiece firmly, use appropriate cutting fluid to manage heat, and maintain a steady, controlled feed to minimize deflection on the long-reach bit. If your workflow includes multiple deep-hole tasks, this drill reduces tool swaps and keeps production flowing smoothly.