Donau Elektronik HSS-CO-225 HSS Cobalt Metal Twist Drill Bit Set, 10 Pieces, 1.3–2.5 mm, DIN 338, Cylindrical Shank

Precision drilling in tough metals demands a bit that resists heat and wear. The Donau Elektronik HSS-CO-225 set delivers exactly that, with ten cobalt-alloyed twist drills covering diameters from 1.3 mm to 2.5 mm. Each bit is manufactured to DIN 338 standards for consistent geometry and reliable performance.

Who is it for

This set is ideal for metalworkers, maintenance technicians, and serious DIYers who regularly drill steel, stainless steel, cast iron, or non-ferrous metals. It suits both corded and cordless drills as well as drill presses, making it a versatile addition to any workshop.

Main features

• 10-piece set with diameters: 1.3, 1.4, 1.5, 1.5, 1.8, 2.0, 2.2, 2.3, 2.4, 2.5 mm
• HSS-Co (cobalt high-speed steel) for superior heat resistance and longer life
• DIN 338 standard ensures precise tip geometry and cylindrical shank for secure chuck grip
• Right-hand cutting direction for standard drilling operations
• Suitable for steel, stainless steel, cast iron, and non-ferrous metals

Specifications

• Brand: Donau Elektronik
• Model: HSS-CO-225
• Type: Twist drill bit set
• Material: HSS-Co (cobalt alloyed high-speed steel)
• Standard: DIN 338
• Shank: Cylindrical
• Number of pieces: 10
• Diameter range: 1.3 mm – 2.5 mm
• Cutting direction: Right-hand
• Compatible tools: Corded drills, cordless drills, drill presses

Tips

Use cutting fluid when drilling stainless steel or cast iron to extend bit life and improve hole quality. For deep holes, withdraw the bit periodically to clear chips and reduce heat buildup.