NWKA HSSE Cobalt Twist Drill Bit 14 mm DIN 338 for Stainless Steel

The NWKA HSSE cobalt twist drill bit with a 14 mm diameter stands apart from standard HSS bits thanks to its 5% cobalt alloy, which delivers superior heat resistance and hardness. This makes it a reliable choice for demanding drilling tasks in tough materials where ordinary bits quickly dull or overheat.

Highlights

• Precision-ground from solid HSSE (High-Speed Steel with Cobalt) for long-lasting sharpness
• DIN 338 compliant with 135° split point for accurate self-centering and reduced walking
• Bright, ground finish reduces friction and improves chip evacuation in deep holes
• Optimized for stainless steel (INOX), acid-resistant steel, high-alloy steels, and heat-resistant steel
• Cylindrical shank fits standard drill chucks; h8 tolerance ensures a secure, precise fit

In daily use

This twist drill bit is engineered for professionals and serious DIYers who regularly work with stainless steel and other hard alloys. The cobalt-enriched HSSE construction withstands high cutting temperatures, allowing you to maintain faster drilling speeds without sacrificing bit life. The 135° split point eliminates the need for center punching and delivers clean, accurate holes from the first contact. With a 108 mm flute length and 160 mm overall length, it provides ample reach for most workshop and on-site applications. The right-hand cutting direction and standard helix flute design ensure efficient material removal and smooth operation in drill presses or handheld drills.

Full specifications

• Product type: Twist drill bit
• Material: HSSE (High-Speed Steel with Cobalt, ~5% Co)
• Drill bit standard: DIN 338
• Drilling diameter: 14.00 mm
• Working length (flute length): 108 mm
• Total length: 160 mm
• Shank type: Cylindrical
• Point angle: 135°
• Surface finish: Bright / Ground
• Manufacturing process: Ground from solid
• Tolerance: h8
• Cutting direction: Right-hand cut
• Flute type: Standard helix
• Self-centering point: Yes
• Recommended applications: Stainless steel (INOX), acid-resistant steel, high-alloy steels, heat-resistant steel

Final note

For consistent performance and extended tool life in challenging materials, the NWKA HSSE cobalt drill bit is a dependable addition to any professional toolkit.