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Cobalt Drill Bit Set 25PCS HSS-CO Bits for Hardened Metal and Stainless Steel

Product Description

  • Metric length, the best general purpose length for professionals and DIYers
  • General and Specialized Purpose, for tough materials that normal HSS bits cannot work
  • Cobalt bits make for some of the cleanest holes and the most durable drill bits, the surest bits for long-life and extended working hours on toughest materials
  • Straight Shank will fit in any common drill
  • Includes 25 pieces each of 1.0/1.5/2.0/2.5/3.0/3.5/4.0/4.5/5.0/5.5/6.0/6.5/7.0/7.5/8.0/8.5/9.0/9.5/10.0/10.5/11.0/11.5/12.0/12.5/13.0mm, a total of 25 drill bits
 
Twist drill bits are the standard type of bit for modern building construction and are built to be used on, but not limited to, most home fixtures and furnishings.
 
Features:
 
Cobalt is the longest lasting material when it comes to common drill bit materials, not only will the bit’s structural integrity withstand tremendous heat and wear, but more importantly Cobalt bits can drill through tougher materials than common HSS bits.
 
Made of High Speed Steel containing cobalt (HSS M35), the cobalt giving an auburn color to the metal, is stronger than other HSS bits, meaning that it not only lasts longer but also can work hardened metals and things with denser or tougher attributes that most other bits, no matter the quality, cannot cut. Thus Cobalt Bits are the ideal choise for professionals or DIYers that are looking to take their craftsmanship to the next level with extended working hours and a far more diverse range of materials.
 
With a 135 degree split-point, these drill bits will catch on the work-surface with greater ease and not wander all over the surface making scratch-marks. This means that after securing the bit in the machine all that is needed is a steady hand to point and apply pressure, and that’s it.
 
The straight shank of our bits means you can use this drill bit with nearly all types of machines.
 
The Metric length is the most commonly used length to diameter standard of drill bit, the length is scaled according to the diameter of the drill head to give maximum force with maximum support so as to keep the bit from bending under the pressure, all the while keeping the machine a comfortable distance from the surface so as not to come in contact and scratch it.
 
Included in the package is 1 piece of each dimension: 1.0/1.5/2.0/2.5/3.0/3.5/4.0/4.5/5.0/5.5/6.0/6.5/7.0/7.5/8.0/8.5/9.0/9.5/10.0/10.5/11.0/11.5/12.0/12.5/13.0mm. Making for a total of 25 drill bits in total.
 
 
 
 
1.All payments must be prepaid.
2.We only accept payment via Paypal.Please kindly check if you can do the payment via paypal before placing an order.
1. We are not responsible for undeliverable address, we reserve the right to charge the shipping fee again for returned items due to wrong address.
2. We will ship out your package by China post as soon as possible, it usually takes around 7-14 business days (USA, CA, AU, UK), others country takes around 10-20 business days (Brzil, India, RU), exact delivery time depends on postal process.
3. If you do not receive your item by 30 business days, Please feel free to contact us via ebay mail system, we will try our best to resolve any problems with you.
4. the import tax/duty is the buyer's responsibility, not included in the price and the shipping fee. It is charged by the custom of your country.
(Pls note, business days means Sat. & Sun. excluded)
1. We offer 30 days money back guarantee return policy .
2. Our warranty does not extended to any products that are physically damaged or that are not under normal operating conditions as a result of misuse or improper installation on the buyer/user's part.
3. For all returned products, buyers MUST contact us for the returning address.
4. In all cases, buyers pay shipping fees at their own cost to return products for exchange or refund. We will be responsible for the postage of replacements. Refund will be made upon receipt of the returned item.
We have office and warehouse in UK, Australia and US to ensure fast shipment and after-sale service.
We have more than 50 employees devoting to customer satisfaction.
And more brands will be show in our store in near future.
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