Somta Extra Long Series Drill - HSS-E Parabolic Flute - 4mm x 220mm

The Somta Extra Long Series Drill - HSS-E Parabolic Flute - 4mm x 220mm is purpose-built for deep-holes with unwavering precision. Designed to reach into thick workpieces, this drill empowers you to complete through-holes and long-pocket drilling tasks in a single setup, reducing tool changes and boosting productivity in demanding machining environments.

Why this drill stands out

• Extended reach for deep holes with a 220 mm flute length that keeps straightness and control when piercing into long workpieces or molds.
• HSS-E construction delivers robust durability, excellent heat tolerance, and longer tool life under aggressive cutting conditions common in metalworking.
• Parabolic flute geometry optimizes chip evacuation, dramatically reducing chip clogging and allowing the drill to maintain steady progress in challenging materials.
• Sharp cutting edges for clean holes and a flute design that minimizes friction, helping to achieve accurate hole size and smooth hole walls even in tougher metals.
• Consistent performance across applications—from steel and cast iron to non-ferrous alloys—thanks to engineered geometry that balances cutting efficiency with heat management.

Ideal uses and practical applications

This drill excels in settings where deep, precise holes are essential. Use it for:

• Deep-through holes in automotive components, hydraulic blocks, and machinery housings
• Long-pocket drilling in mold making, fixtures, and fabrication
• Any project demanding reliable reach, clean entry, and accurate hole dimensions in metal

How to get the best results

Maximize performance and tool life with these practical tips:

• Secure the workpiece firmly and use a steady, controlled feed to prevent deflection on deep holes.
• Apply appropriate cutting fluid or coolant to manage heat buildup and extend edge life.
• Peck drilling in shallow meters to clear chips, then resume full-depth drilling for a clean hole.
• Match drilling speeds to the material and use a rigid drilling setup (drill press or CNC) to maintain concentricity.

With the Somta Extra Long Series Drill - HSS-E Parabolic Flute, you gain a dependable deep-hole solution that pairs extended reach with efficient chip management and durable construction. It’s the tool you reach for when precision, consistency, and productivity matter most in metalworking projects.