Somta Extra Long Series Drill - HSS-E Parabolic Flute - 3mm x 150mm

Introducing the Somta Extra Long Series Drill – HSS-E Parabolic Flute, a precision tool built for deep-hole drilling with consistent results. With a compact 3mm diameter and an extended 150mm length, this drill is designed to reach into recessed workpieces and through-thickness sections where standard bits fall short. Crafted for demanding metalworking tasks, it delivers reliable performance from start to finish.

Key features that matter in real-world drilling

• Extra-long reach – 150mm overall length enables deep hole drilling without relocating the workpiece or flipping pieces mid-operation.
• Precise 3mm diameter – ideal for fine-tinish holes, alignment pins, or features where tight tolerances are essential.
• HSS-E construction – High-Speed Steel with enhanced heat resistance for longer tool life and dependable performance under tougher drilling conditions.
• Parabolic flute geometry – optimized chip evacuation that minimizes clogging, reduces friction, and helps maintain a clean, straight hole even in deeper applications.
• Sharp cutting edges – designed to produce accurate hole diameters with smooth finishes and minimal workpiece deformation.

Why this drill is a smart choice for deep-hole work

If your projects demand access to deep cavities, blind pockets, or through-holes in metal, the Somta Extra Long Series Drill provides the reach you need without compromising precision. The parabolic flute design not only speeds chip removal but also lowers cut heat buildup, helping preserve both the drill’s edge and the workpiece surface. This combination translates to fewer reworks, faster cycles, and longer tool life in daily machining tasks.

Ideal use cases

• Deep-hole drilling in thin or stacked metal parts where access is limited.
• Precisely located holes for dowel pins, fasteners, or alignment features in assemblies.
• Micro-precision drilling in electronics enclosures, automotive components, and machinery housings.

Practical tips for best results

• Use appropriate workholding and a rigid setup to prevent deflection on the long reach.
• Begin with a light, steady feed to establish the hole and reduce workpiece liping; increase feed as the drill engages deeper.
• Apply a compatible cutting fluid or coolant to manage heat, extend edge life, and improve finish quality on metals.
• Inspect chips during drilling; if you notice clogging, pause to clear the flute and maintain smooth evacuation.

Whether you’re fabricating precise closures, machining fixtures, or crafting detailed metal components, the Somta Extra Long Series Drill – HSS-E Parabolic Flute, 3mm x 150mm, is a dependable tool that tackles deep-hole challenges with confidence. Its combination of long reach, durable construction, and efficient chip control makes it a standout choice for professional workshops and serious hobbyists alike.