Somta Long Series Drill - HSS-E Parabolic Flute - 6.2mm

The Somta Long Series Drill - HSS-E Parabolic Flute - 6.2mm is engineered for precision in deep-hole drilling across demanding metals. Its extended reach and reinforced cutting edges deliver consistent, clean holes even when you’re penetrating thick materials. Built with HSS-E (High-Speed Steel with enhanced alloying), this drill combines durability with heat resistance to keep cutting performance steady under higher temperatures and longer workloads.

What makes this drill stand out for deep-hole work

• Long-reach geometry enables reliable hole creation in thick workpieces without sacrificing accuracy or rigidity. This is ideal for through-holes and deep blind holes where standard bits struggle to maintain concentricity.
• HSS-E composition provides superior durability and heat resistance, so you can push cutting depths and speeds with less worry about premature wear or premature failure.
• Parabolic flute design enhances chip evacuation, reducing built-up heat and cutting forces. The result is smoother penetrations, less clogging, and longer tool life in tough metals.
• Sharp cutting edges work to produce crisp, round holes with excellent surface finish, minimizing the need for rework and secondary operations.

Ideal applications and practical use cases

• Deep-hole drilling in steel, stainless steel, cast iron, and other metallic workpieces where hole depth exceeds the length of a standard bit.
• Fabrication, automotive, and general metalworking projects that demand precise hole diameters with reliable chip clearance.
• Prototyping and production environments where repeatable hole quality reduces cycle time and waste.

Performance tips for best results

• Use a clean, firm clamping setup to minimize deflection in deep holes. A sturdy drill press or CNC machine helps preserve concentricity.
• Select appropriate speed and feed to balance cutting heat. When drilling deeper, consider slower feeds and controlled pecking to clear chips effectively.
• Maintain coolant or lubrication to reduce heat buildup, extending tool life and improving hole finish.
• Start with a pilot hole if needed to establish alignment before engaging the full 6.2mm bit for the deeper section.

Specification snapshot

• Diameter: 6.2 mm
• Construction: HSS-E (High-Speed Steel Enhanced)
• Flute design: Parabolic for efficient chip evacuation and reduced cutting forces
• Ohmic performance: Optimized for deep-hole drilling with extended reach

With the Somta Long Series Drill in 6.2mm, you gain a tool that pairs aggressive metal removal with controlled heat management, delivering reliable, high-precision holes project after project. Whether you’re upgrading a workshop lineup or tackling a challenging fabrication task, this drill bit is designed to maintain performance where standard bits falter.