Somta Long Series Drill - HSS-E Parabolic Flute - 5.6mm

The Somta Long Series Drill in 5.6mm is purpose-built for serious deep-hole work. Crafted in HSS-E, this drill combines a long, rigid form with parabolic flute geometry to tackle through-thickness drilling with confidence, precision, and minimal effort.

Why this drill stands out

• HSS-E construction delivers superior heat resistance and durability under demanding drilling speeds, making it ideal for tough metals and continuous-use environments.
• Parabolic flute design optimizes chip evacuation from long holes, reducing cutting forces and preventing chip packing that can stall progress or mar hole quality.
• Long-series length provides extended reach for deep cavities and thick sections, helping you drill cleanly without repositioning or reworking the workpiece.
• Sharp, reliable cutting edges produce accurate, round holes with minimal runout and burr-free finishes, even in hardened or alloyed materials.
• Reduced friction and heat build-up the flute geometry minimizes stagnation at the cutting edge, prolonging tool life and maintaining consistent performance across the job.

Ideal applications

• Deep-hole drilling in metal fabrication, automotive components, and machinery enclosures where access is limited and hole depth is critical.
• Through-thickness work on stainless steel, alloy steels, and other hard metals where standard drills struggle with heat and chip clearance.
• Precision pilot and clearance operations that demand clean exit holes and tight tolerances without frequent tool changes.

Practical tips for best results

• Use appropriate spindle speed and feed rate for 5.6mm HSS-E drills to maintain cutter integrity and hole quality.
• Keep chips evacuating freely—consider flood cooling or light lubrication to minimize heat buildup during deep-hole work.
• Start with a light pilot hole if you’re drilling a blind depth, then progress to the full 5.6mm diameter to ensure true alignment and straight holes.

When you need a drill that blends reach, reliability, and precise hole quality in demanding materials, the Somta Long Series Drill—5.6mm, HSS-E with Parabolic Flute—delivers consistent performance you can trust on every job.