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11mm x 2pcs M42 8% Cobalt Drill Bits for Stainless Steel and Hard Metal
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11mm x 2pcs M42 8% Cobalt Drill Bits for Stainless Steel and Hard Metal
3X cutting ability and 2X durability
11mm x 2pcs M42 8% Cobalt Drill Bits for Stainless Steel and Hard Metal
Item #: 21632711

11mm x 2pcs M42 8% Cobalt Drill Bits for Stainless Steel and Hard Metal

Item #: 21632711

INR 2795

Price Details

Price

INR 2795

M.R.P. INR 2795

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

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Order now and get it around Thursday, September 10
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What Stands Out

Cobalt Composition
Constructed with 8% cobalt, these bits provide superior durability and heat resistance, making them ideal for drilling through stainless steel and hard metals efficiently.
Versatile Range
The 19-piece set includes sizes from 1mm to 10mm, catering to various drilling needs, perfect for professionals and DIY enthusiasts alike.
Precision Engineering
Designed for maximum accuracy, the twist drill bits ensure clean, precise holes, reducing the likelihood of chipping or breakage during use.

Product Details

STROTON Shop for M42 Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal at Ubuy. Get high-quality drill bits from India with a wide range of sizes.
Package Weight1.265 Pound

Who Should Buy?

Suitable For
  • Professional Machinists

    Ideal for machinists who frequently drill into stainless steel and hardened materials with precision and durability.

  • Metal Fabricators

    Perfect for fabricators needing high-performance bits for creating accurate holes in various tough metals.

  • DIY Enthusiasts

    Great for DIYers tackling home projects with metal work that require durable and reliable drill bits.

Not Suitable For
  • Soft Material Users

    Not suitable for users primarily working with soft woods or plastics, as these bits may cause damage.

Product Description

11mm x 2pcs M42 8% Cobalt Drill Bits for Stainless Steel and Hard Metal

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What materials can the Metric M42 Cobalt Twist Drill Bits effectively drill through?

    Answer: The Metric M42 8% Cobalt Twist Drill Bits are specifically designed to drill through tough materials like stainless steel and hard metals. The cobalt alloy enhances the drill's strength and heat resistance, allowing it to penetrate dense materials without dulling quickly. This makes them ideal for industrial applications, metalworkers, or DIY enthusiasts who need reliable performance on materials such as alloys, titanium, and hardened steel.
  • Question: What size options are included in the Metric M42 Cobalt Twist Drill Bits set?

    Answer: This set includes a range of drill bit sizes from 1mm to 10mm, providing versatility for various tasks. Whether you need to create small pilot holes or larger diameter openings, this comprehensive selection caters to numerous drilling needs. This adaptability makes it a valuable addition for professionals working in engineering, fabrication, or automotive repair, where precision is crucial.
  • Question: How long do these cobalt drill bits typically last compared to standard steel bits?

    Answer: Cobalt drill bits, like the ones in this M42 set, generally outlast standard high-speed steel bits by a significant margin. Their enhanced durability and heat resistance allow them to maintain sharpness longer, even when drilling into tough materials. This feature is especially beneficial for machinists and metalworkers who require sustained performance and precision over prolonged use.
  • Question: Can these drill bits be used in a standard drill, or do I need a specific type?

    Answer: The Metric M42 Cobalt Twist Drill Bits are compatible with standard electric and cordless drills that accept twist drill bits. They can be used in most drill chucks, which makes them convenient for a wide range of drilling tasks at home or on the job. This versatility means you can upgrade your toolset without needing specialized equipment.
  • Question: Is there a specific technique for using cobalt drill bits on hard metals?

    Answer: When using cobalt drill bits on hard metals, it's important to use the correct drilling technique to optimize their performance. Start at a lower speed to prevent overheating, and apply steady, moderate pressure during drilling. Using cutting fluid can also enhance the lifespan of the bits and improve drilling efficiency. This method is particularly useful in metalworking settings to achieve clean holes and reduce bit wear.
  • Question: What is the benefit of having 19 pieces in this drill bit set?

    Answer: Having 19 pieces in the Metric M42 set ensures that you have a comprehensive range of sizes readily available for different projects. This variety accommodates a wide array of drilling tasks without needing to purchase additional sets, offering both convenience and cost-effectiveness. From small precision jobs to larger metalwork applications, this set ensures you're prepared for any situation.
  • Question: Are these cobalt drill bits suitable for both professional and DIY use?

    Answer: Yes, the Metric M42 Cobalt Twist Drill Bits are suitable for both professional and DIY applications. Professionals will appreciate their durability and reliability in a workshop setting, while DIY enthusiasts will find them effective for home projects involving stainless steel and hard metals. Their versatility makes them a go-to choice for anyone needing high-performance drill bits.
  • Question: How do I properly care for and maintain cobalt twist drill bits?

    Answer: To maintain the performance of your cobalt twist drill bits, clean them after use to remove any metal shavings or debris. Store them in a protective case to prevent damage and avoid using them on materials they aren't designed for. Following these care tips can extend the lifespan of the bits and ensure they remain sharp and efficient for your next drilling task.
  • Question: Where can I purchase the Metric M42 8% Cobalt Twist Drill Bits Set in India?

    Answer: You can conveniently purchase the Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal at Ubuy in India. Ubuy offers a wide range of tools and home improvement products, ensuring you have access to top-quality materials for your projects.

STROTON Drill Bit Sets Editorial Review

The Stroton HSS Cobalt M35 Spiral Grooved Drill Bit Set seems to be a hit or miss product. While some customers have found these bits to be a game changer as they are able to drill faster, straighter and cooler, others have found the bits to be brittle and easily breakable, resulting in them not being happy with the product at all. The product comes in a plastic case and has average length bits. Although the packaging of the product is not sturdy, the seller is able to deliver in a quick and effective manner. However, there have been complaints from customers about broken bits and packaging issues. Overall, this product seems to work well for some customers while others have faced issues with the quality. It is important to note that these bits are made to drill through hard steel and may not work well with titanium alloys.

Customer Reviews & Ratings

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Pros

  • Able to drill faster, straighter and cooler
  • Quick delivery
  • Comes in a plastic case for organization

Cons

  • Bits are brittle and may break easily

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4.2/5 1561 reviews
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Paritosh
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“Quality, fit, and variety are all good. Very good quality, perfect fit, with a good variety in 70s Bellbottom jeans. Keep them coming.”

20-Jul-26 · via Trustpilot
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Aggarwal
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“Everything was well maintained and smooth . We can trust UBUY .”

23 July 2026 · via Trustpilot
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Jeeju
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“Product is nice. Well packaged and delivered promptly”

23 July 2026 · via Trustpilot
NG
neeraj
Verified buyer

“Product was delivered before time. At each steps remider given time to time ,product is also good and fruitful”

3 July 2026 · via Trustpilot
SP
siva
Verified buyer

“I received the product properly packed and without any damage. If you can provide a video showing how to assemble the parts, it would be a great help. Thanks & Regards, Siva Prakash.”

16-Jul-26 · via Trustpilot
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INR 2795

Order now and get it around Thursday, September 10

QTY:

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Fastest cross-border delivery

Features & Benefits

  • - STROTON cobalt drill bits offer 3X cutting ability and 2X durability
  • - Made of premium cobalt for higher temperature resistance and wear resistance
  • - Ideal for stainless steel, hard metals, aluminum, copper, plastic, and hardwood
  • - 3-step design for immediate drilling and accurate centering
  • - Control drill speed and use cutting fluid for better drilling performance
  • - Available in various sizes and packaging options

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