Drill Bit DeWalt DT20526 Black & Gold 8.0 mm – metal drill bit

High-speed drill bit DeWalt Black & Gold DT20526 with an 8.0 mm cutting diameter, created for drilling metal. The Black & Gold coating improves wear resistance and helps with chip evacuation. Designed for use in hand-held drills and drill presses, this metal drill bit is intended for steel and other ferrous materials in workshop, maintenance and fabrication tasks.

Advantages

The 8.0 mm DeWalt Black & Gold drill bit offers consistent cutting performance in metal thanks to its high-speed steel core and a durable Black & Gold surface treatment that reduces friction and extends tool life. Its geometry promotes effective chip removal and stable drilling, while compatibility with standard drill chucks makes it suitable for both portable drills and bench machines.

Suitable for

• Drilling holes in mild and medium carbon steels
• Workshop and maintenance repairs
• Fabrication tasks requiring repetitive metal drilling
• Use with hand drills and drill presses

When it may not be suitable

This drill bit is intended for ferrous metals and routine workshop use; it may not be the best choice for drilling very hard alloys, hardened steel, stainless steel with high chromium content, or non-ferrous materials where specialized coatings or geometries perform better. For precision reaming, countersinking, or hole finishing to tight tolerances, additional finishing tools will be required.

Key specifications

• Cutting diameter: 8.0 mm
• Material type: high-speed steel (HSS) with Black & Gold coating
• Intended material: ferrous metals (steel and similar)
• Typical applications: hand drills and drill presses
• Primary feature: enhanced wear resistance and improved chip evacuation

How to use

Secure the drill bit in a compatible chuck, ensuring the shank is seated and tightened to prevent wobble. Mark and center the drilling point, and start at a low speed to create a pilot impression if necessary. Use appropriate cutting fluid for metal drilling to reduce heat and prolong bit life, applying steady pressure and allowing chips to clear. Periodically withdraw the bit to remove chips and prevent clogging; finish the hole at a consistent feed once cutting is established.

What to consider before purchase

• Confirm the 8.0 mm diameter meets your hole size requirements.
• Ensure compatibility with your drill chuck and machine speeds.
• Consider workpiece material — designed primarily for ferrous metals.
• Plan for cutting fluid and correct drilling speeds to maximize tool life.

Usage recommendations

Use medium to low drilling speeds for steel, apply cutting fluid, and avoid excessive side loads. Regularly clear chips and replace the bit when cutting performance declines to maintain hole quality and safety.