The Somta Extra Long Series Drill - HSS-E Parabolic Flute - 13mm x 375mm is engineered for precision and reach. Designed for deep-hole drilling, this bit lets you access pockets, cavities, and long bores that standard drills simply can’t reach, delivering consistent hole quality from start to finish.

• Extreme reach for deep holes. With a 375mm overall length, this drill enables accurate drilling where length matters—blind holes, through-holes in thick workpieces, and long bores in assemblies.
• HSS-E construction for durability. High-Speed Steel Enhanced (HSS-E) stands up to heat and wear, extending tool life and maintaining sharp cutting edges under demanding drilling conditions.
• Parabolic flute for efficient chip evacuation. The parabolic flute geometry is optimized to move chips out of the hole quickly, reducing clogging and minimizing heat buildup for smoother cuts.
• Clean, precise holes. Sharp cutting edges and precise flute geometry produce accurate hole diameters with minimal burrs, improving downstream assembly and fitment.
• Versatile for common metals. Effective across a range of materials typically encountered in machining, including steels, cast irons, and nonferrous metals, making it a reliable choice for mixed-metal projects.
• Consistent performance in demanding setups. The long flute length supports stable entry and exit, helping maintain alignment and reducing deflection during deep drilling.

Ideal for machinists, toolmakers, and engineers tackling deep-hole tasks in automotive components, industrial enclosures, machinery housings, and metal fabrication projects. When you need a drill that can reach deep into a workpiece without sacrificing hole quality, the Somta Extra Long Series Drill delivers dependable performance and long-lasting cutting life.

Usage tips to maximize results: maintain steady feeds to match the bit’s length, use a suitable cutting fluid to dissipate heat, secure the workpiece firmly, and start with a light pilot if appropriate to establish alignment before engaging the full drill depth. Regularly clean the flute as you drill to prevent chip buildup, and store the bit in a dry environment to preserve its edge.