NEO TOOLS HSS-Co 13.0 mm Metal Drill Bits, 5-Pack (DIN 338)

Professional workshops and demanding metalworking tasks call for drill bits that stay sharp and precise under high heat. This 5-piece set of NEO TOOLS HSS-Co twist drill bits in 13.0 mm diameter is built for exactly that. The cobalt-alloyed high-speed steel (HSS-Co with 5% cobalt) delivers superior hardness and heat resistance, allowing you to drill through tough materials like stainless steel, alloy steel, cast iron, and non-ferrous metals without premature wear. The 135° split point self-centers on contact, reducing walking and the need for center punching, while the bright, uncoated finish ensures clean chip evacuation. Conforming to DIN 338, these bits are right-hand cutting with a cylindrical shank, ready for use in corded drills, cordless drills, or drill presses.

Key specifications

• Drill bit type: Twist drill bit
• Material: HSS-Co (high-speed steel with 5% cobalt)
• Diameter: 13.0 mm
• Quantity: 5 pieces
• Point angle: 135° self-centering split point
• Shank: Cylindrical
• Standard: DIN 338
• Surface finish: Bright / uncoated
• Cutting direction: Right-hand
• Flute type: Standard spiral
• Application: Metal drilling (stainless steel, alloy steel, cast iron, non-ferrous metals)
• Recommended use: Corded drills, cordless drills, drill presses

Why choose it

Cobalt alloyed steel keeps the cutting edge harder at high temperatures, so you can work longer without resharpening. The 135° split point starts on contact and drills accurately without a pilot hole, saving time on layout. Each bit is manufactured to DIN 338 tolerances for consistent diameter and concentricity, ensuring clean, round holes in every pass.

Ideal use cases

• Fabrication shops drilling stainless steel sheet and profiles
• Maintenance crews repairing alloy steel machinery components
• Metalworking hobbyists creating precise holes in cast iron or aluminum
• Production environments requiring repeatable 13 mm holes in tough alloys

Good to know

Use cutting fluid or appropriate lubrication when drilling hard metals to extend bit life. Store bits in a dry place to prevent corrosion. The bright finish allows easy visual inspection for wear or damage. For best results, match the drill speed to the material hardness and use a drill press for maximum accuracy.