What people love (and don’t love)
What people love
- High-quality, sharp, and precise drill bits suitable for various metals like aluminum, copper, and stainless steel.
- Good performance when used with tapping fluid or oil, especially at slower speeds to prevent overheating.
- Reasonably priced and good value for money.
- Round shank preferred by some users for less wobble and better control during hand drilling.
- Positive user experience across DIY projects and metal drilling tasks.
What people don’t love
- Some concerns about the storage case, which is seen as low quality and does not keep bits organized.
- One negative review mentioned dull bits and overheating on simple drilling tasks.
- Limited testing reported on harder materials by some users.
Overall, these drill bits offer sharpness and good quality at a fair price, ideal for light to moderate metal drilling with proper technique.
Summary based on customer review evidence.
Quick facts
- Brand: LingGan
- Price: USD 8.99
- Rating: 4.60 (1182 reviews)
The LingGan Metric Cobalt Drill Bits Set gives you a practical range of small-to-mid metric sizes for metalworking and general shop tasks. Made from M35 cobalt high-speed steel (5% cobalt per the manufacturer), these bits are built for wear resistance and heat resistance when drilling into demanding materials.
You can view the current price and full details on Amazon here.
With 13 pieces spanning 1.5mm to 6.5mm, it’s a flexible pick for maintenance, fabrication, hobby work, and toolboxes where you want multiple sizes on hand without buying individual bits. The straight shank design supports use in mechanical or hand drills, and the set is intended for common metals including stainless steel, cast iron, copper, and aluminum.
- M35 cobalt HSS (HSS-CO) material for wear resistance in high-intensity use
- Designed for multi-metal drilling: stainless steel, cast iron, copper, and aluminum
- 13 metric sizes included (1.5mm–6.5mm) for versatile project coverage
- Heat-resistant performance characteristics for tougher drilling conditions
- Straight shank, 2-flute design for compatibility with many drills
Note: This is a metric set (not fractional/inch sizing). If your projects call for SAE sizes, you may want an additional fractional set alongside it.
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