Somta Extra Long Series Drill - HSS-E Parabolic Flute - 6.5mm x 215mm

Reach deep, drill cleanly, and conquer thick workpieces with the Somta Extra Long Series Drill - HSS-E Parabolic Flute, 6.5mm x 215mm. Designed for demanding deep-hole applications, this drill combines extended reach with precision engineering to deliver accurate holes where standard bits struggle.

Why this drill stands out

• Extra-long reach: At 215mm overall length with a 6.5mm diameter, it can access deep bores, through-holes, and recesses in thick stock, tooling plates, and automotive components without repositioning the workpiece.
• HSS-E construction: High-speed steel with enhanced wear resistance and heat tolerance. This means longer tool life and consistent performance under demanding drilling conditions.
• Parabolic flute geometry: Optimized for rapid chip evacuation, reducing clogging and heat buildup. The result is smoother cutting action, less friction, and steadier hole progression.
• Sharp, durable cutting edges: Precision-ground edges provide clean entry and accurate hole sizes, delivering tight tolerances even in tough metals.
• Vibration control and alignment: The extended flute design supports stable cutting in deep bores, helping minimize deflection and wobble for true, concentric holes.

Ideal use cases

This drill is a go-to for fabricators, machinists, and engineers who need reliable deep-hole performance. Use it for:

• Through-holes and blind holes in steel, cast iron, and other alloys where depth exceeds standard drill length.
• Machine bases, mounting flanges, and thick structural components where precise, clean holes are critical.
• Tooling plates, molds, and automotive housings that demand long reach without compromising hole quality.

Practical guidance for best results

• Speed and feed: Match RPM to material hardness and use a steady, moderate feed to maintain cutting edge integrity over the drill’s length.
• Cooling and lubrication: Use appropriate cutting fluid for steel and alloys to reduce heat and extend tool life.
• Chip management: Keep chips clear—the parabolic flute excels at evacuating them, but occasional pecking helps prevent clogging in very deep holes.
• : Secure the workpiece firmly and align the drill coaxially to minimize deflection in long bores.

With the Somta Extra Long Series Drill, you don’t have to compromise on reach or precision. It’s a purpose-built solution for deep drilling that delivers dependable results, day after day, in tough metalworking environments.