Drill bit set AWTools AW42570BL HSS-TiN M2 for metal, 15 pcs, sizes 1.5–10 mm, Black Line

AWTools AW42570BL is a 15-piece drill bit set designed for drilling metal. The bits are manufactured from M2 high-speed steel (HSS) and feature a titanium nitride (TiN) coating to enhance surface hardness and wear resistance. The set covers sizes from 1.5 mm to 10 mm in standard increments, making it suitable for a wide range of hole diameters in steel and other metallic materials. Intended for use with handheld drills and drill presses, this Black Line collection focuses on general metalworking, maintenance, and fabrication tasks.

Advantages

The TiN coating increases cutting edge durability and reduces friction during drilling, which contributes to longer tool life compared with uncoated HSS bits. M2 HSS provides good toughness and heat resistance for typical metal drilling operations. The range of sizes from 1.5 mm to 10 mm covers common workshop and maintenance needs, and the bits are compatible with standard drill chucks on portable and benchtop drills.

Suitable for

• Drilling holes in mild and medium-hard steels.
• General metal fabrication and maintenance work.
• Use with handheld electric drills and drill presses.
• Workshop tasks requiring a set of frequently used diameters between 1.5 mm and 10 mm.

When it may not be suitable

This set is not intended for drilling very hard alloys, hardened tool steels, or abrasive non-metallic materials; those applications may require carbide or specialized cobalt drills. Extremely high-speed, heavy-feed industrial drilling operations can exceed the performance limits of M2 HSS with TiN coating and may lead to accelerated wear.

Key specifications

• Material: M2 high-speed steel (HSS).
• Coating: Titanium nitride (TiN) for increased wear resistance.
• Number of pieces: 15 drill bits.
• Diameter range: 1.5 mm to 10 mm (standard incremental sizes).
• Intended materials: Steel and other metals (general metalworking).
• Compatibility: Standard drill chucks on handheld drills and drill presses.

How to use

Select the drill bit size appropriate for the required hole diameter and secure it in the drill chuck to the recommended depth. Use a steady feed and moderate speed appropriate for the diameter and material; larger diameters typically require lower speeds. Apply cutting fluid or lubricant when drilling steel to reduce heat and extend bit life. Clear chips frequently and avoid side loads that can cause breakage, especially with smaller diameters.

What to consider before purchase

• Confirm the diameter range (1.5–10 mm) includes the sizes you need for your projects.
• Assess whether M2 HSS with TiN coating matches the hardness of the metals you will drill; consider carbide or cobalt bits for very hard alloys.
• Verify compatibility with your drill’s chuck and speed control capabilities.

Usage recommendations

Use appropriate drill speeds and cutting fluid for steel, clamp the workpiece securely, and avoid excessive side pressure. For best results, start with a pilot hole for larger diameters and replace worn bits to maintain hole quality and safety.