Somta Extra Long Series Drill - HSS-E Parabolic Flute - 5mm x 245mm

The Somta Extra Long Series Drill - HSS-E Parabolic Flute - 5mm x 245mm is built for serious deep-hole work. When you need to reach into thick workpieces without repositioning or swapping tools, this long-reach drill bit maintains accuracy and smoothness from first hole to last.

Key benefits that set this drill apart:

• Extra-long reach: With a 245 mm overall length, it extends your drilling depth for applications like mold cores, automotive frames, and thick metal sections, enabling precise holes without constant setup changes.
• HSS-E construction: This high-speed steel variant is designed for durability and improved performance under heat, helping the bit stay sharp longer in demanding metalworking tasks.
• Parabolic flute design: The flute geometry creates more space for chip evacuation during deep-hole drilling, reducing chip clogging and heat buildup for cleaner, more reliable holes.
• Sharp cutting edges and optimized geometry
• Consistent hole quality: Reduced friction and efficient chip clearance contribute to uniform hole diameters and smoother hole walls across longer drilling campaigns.

Who should use this tool? machinists, toolmakers, and fabricators who routinely drill deep holes in steel, cast iron, and other metals. It’s especially valuable in shop environments where deep features, dies, jigs, or automotive components demand reliable long-reach performance with precise hole geometry.

Practical tips for best results: align the drill precisely with the intended hole, start with a gentle feed to establish true coaxial contact, and employ a light cutting fluid or coolant to manage heat. Use a controlled pecking routine to clear chips without losing position, then feed steadily to leverage the parabolic flute’s advantage in chip evacuation.

Specifications at a glance:

• Diameter: 5 mm
• Overall length: 245 mm
• Flute geometry: Parabolic
• Material: HSS-E