Somta Long Series Drill - HSS-E Parabolic Flute - 1.5mm

Somta Long Series Drill - HSS-E Parabolic Flute - 1.5mm

When you need reliable deep-hole drilling in thick workpieces, the Somta Long Series Drill in 1.5 mm diameter delivers precision, durability, and efficient chip management. Built for demanding metalworking tasks, this drill combines a long reach with a robust HSS-E core to tackle through-thick materials with confidence.

Its long length is specifically engineered to maintain rigidity and minimize deflection as you drill deeper, reducing surprise bore wandering and improving hole consistency in challenging setups.

The HSS-E (high-speed steel enhanced with alloying elements) composition provides exceptional heat resistance and wear performance, helping the drill stay sharper longer under tough drilling conditions. This makes it well-suited for common engineering metals, including steel, stainless steel, cast iron, and non-ferrous alloys, without compromising hole quality.

The standout feature is the parabolic flute design. This geometry accelerates chip evacuation and lowers cutting forces, which translates to smoother starts, cleaner holes, and extended tool life during sustained deep-hole work. The result is less heat buildup at the cutting edge and fewer interruptions for re-sharpening or tool replacement.

Key benefits for your workshop

• Long-reach capability that enables one-pass drilling through thick stock, boosting productivity while maintaining hole accuracy.
• Sharp cutting edges and efficient chip flow that produce clean, true-diameter holes with minimal burr formation.
• Uncoated HSS-E construction for dependable performance in a range of metals without coating-related complexities.
• Proven compatibility with steel, stainless steel, cast iron, and non-ferrous materials, making it a versatile choice for general fabrication and maintenance tasks.
• Durable, cost-effective performance designed to withstand demanding drilling sequences and reduce tool change frequency.

This drill is a staple in Somta’s Straight Shank Long Series lineup, which features a variety of flute geometries tailored for long-reach and deep-hole applications. By focusing on long-series reliability and specialized flute forms, Somta helps you maximize throughput without sacrificing accuracy.

Pro tips for best results

• Use a steady, moderate feed and adequate cooling to manage heat during deep-hole drilling.
• When possible, start with a light pilot hole or guide to reduce deflection in long reach tasks.
• Withdraw the tool periodically to clear chips and maintain consistent cutting performance on long holes.

Note: Somta’s long-series drills are designed for extended reach and improved deep-hole performance, available in various materials and flute geometries within the same product family.