Somta Extra Long Series Drill - HSS-E Parabolic Flute - 8mm x 240mm

The Somta Extra Long Series Drill - HSS-E Parabolic Flute - 8mm x 240mm is built for serious deep-hole tasks where reach and performance matter. This drill combines high-speed steel enhanced (HSS-E) construction with a parabolic flute design to optimize chip removal and keep heat in check as you bore into thick workpieces.

With an overall length of 240 mm and a precise 8 mm cutting diameter, it penetrates deep into metal, cast iron, and alloy surfaces to produce clean, accurate holes with minimal wander. The HSS-E material resists wear and maintains sharpness through extended drilling sessions, delivering longer tool life in demanding environments.

• Parabolic flute for efficient chip evacuation — continuous chip movement reduces clogging and keeps the drill cutting smoothly at depth.
• Sharp cutting edges — delivers clean hole finishes with reduced exit burrs on tough metals.
• Heat management — flute geometry and premium steel work together to minimize friction and heat buildup during deep drilling.
• Deep-hole versatility — excels in through-holes and blind holes in steel, stainless steel, and alloys where length matters as much as precision.
• Consistent performance — stable cutting action at practical feed rates boosts productivity without sacrificing accuracy.

Practical tips for best results: pair this drill with appropriate spindle speeds and a peck drilling technique to prevent chip packing in long holes. Use flood coolant or misting for heat-sensitive materials, and ensure your workpiece is securely fixtured to maintain true, straight holes from start to finish.

Ideal for machinists, toolmakers, and fabrication shops that require reliable reach for deep-bore tasks without compromising hole quality. The Somta Extra Long Series Drill offers deep access, durable performance, and a consistently clean hole every time.