Somta Extra Long Series Drill - HSS-E Parabolic Flute - 4.5mm x 295mm

Meet the Somta Extra Long Series Drill — a precision tool built for deep-hole precision and unmatched reach. This HSS-E Parabolic Flute drill bit measures 4.5 mm in diameter and extends to 295 mm in length, giving you the ability to drill deep into your workpiece without re-fixturing or repositioning.

Engineered for demanding metalworking tasks, the HSS-E (High-Speed Steel Enhanced) construction delivers exceptional durability, wear resistance, and heat tolerance. That means sharper cuts, longer tool life, and consistent performance across multiple deep-hole operations.

• Parabolic flute design: Optimized chip evacuation along a wide-flute channel to minimize clogging and reduce heat buildup, so you maintain a steady, clean cut even in deep holes.
• Sharp, reliable cutting edges: Precision-ground lips ensure clean hole geometry with minimal wandering, improving hole quality in steel, stainless steel, and aluminum.
• Extended reach for deep holes: The extra-long flute length enables drilling in long fixtures, pockets, or through thick workpieces where standard bits fall short.
• Durability you can count on: The robust HSS-E body stands up to repeated use, delivering consistent performance and longer tool life in tough drilling contexts.

Ideal use scenarios

Use this drill bit when you need to access deep cavities or through-holes in metal assemblies. It shines in applications such as automotive components, moldmaking fixtures, or long blocks where depth and precision matter. Pair it with appropriate drilling speeds and steady feeds to maintain chip control and hole accuracy throughout the operation.

Why this drill stands out

If reach is non-negotiable, the Somta Extra Long Series Drill combines an extended flute with robust HSS-E construction to deliver reliable straightness and consistent hole quality. The parabolic flute geometry actively manages chips and heat, helping you complete deeper holes with less effort and fewer interruptions for chip clearing.

Specifications at a glance

• Diameter: 4.5 mm
• Overall length: 295 mm
• Flute geometry: Parabolic
• Material: HSS-E (High-Speed Steel Enhanced)
• Application: Deep-hole drilling in metal

Choose the Somta Extra Long Series Drill for deep, precise holes where other bits can’t reach. Built to last, it turns challenging deep-hole tasks into straightforward, repeatable results.