eBay

Tungsten Carbide Drill Bits 3-10mm TCT Drills Bit For Stainless Steel Metal Sets

‌Material Advantages‌

‌Ultra-Hard Alloy‌: 94% tungsten carbide + 6% cobalt composition (HRA92+ hardness), 5-8x more wear-resistant than HSS bits.
‌Optimized Flute Design‌: 55° helix angle minimizes chip clogging with efficient debris removal.
‌Nano-Coating Option‌: TiAlN coating (optional) withstands 1200°C for 30% longer tool life.

‌High Efficiency‌

✔ ‌Speed Boost‌: 80-120m/min feed rate on 45# steel (200% faster than standard bits).
✔ ‌Multi-Material‌: Cuts stainless steel (below HRC35), cast iron, aluminum alloys, composites.
✔ ‌Precision‌: ±0.02mm tolerance for CNC machines and handheld drills.

‌Usage Tips‌

⚠️ ‌Cooling‌: Mandatory coolant for prolonged use (intermittent drilling for dry operations).
⚠️ ‌Parameters‌: Match RPM to material thickness (e.g. 800-1200rpm for stainless steel).
⚠️ ‌Storage‌: Keep in dry conditions to prevent coating oxidation.

‌Ideal Applications‌

◉ Automotive parts ◉ Mold steel machining ◉ Aerospace titanium components ◉ Metal hardware

Product information:

Product Name:Tungsten Carbide Drill Bits 3-10mm TCT Drills Bit For Stainless Steel Metal Sets

Material:Tungsten Carbide

Diameter:3mm-16mm

Shank Type：Round

Package included: according to your choice. Select your requirements from the drop down menu above

Note: This Product Is Available in Different Dimensions and Can Be Customized to Your Specific Needs. (If the Size You Are Looking for Is Not Listed, Please Contact Us. We Are Happy to Help! )

Tips:

1.Due to computers display colors differently,the color may vary slightly from the above images,Thanks for your understanding!

2.Due to different manual measurement methods, the size may be slightly different, please understand!

3.You have any questions, please feel free to contact us, we will reply as soon as possible and help you solve!

About usPaymentContact usGuaranteeAbout item

About us

●Hello Dear Customer:we have been engaged in online sales of hardware fasteners for more than 10 years, if you need a large number of or customized hardware products, please contact us, we can provide good prices and better service.

● All products in our store are elaborately made. Please feel free to buy.

● If you are satisfied with the products, I expect you can leave us positive feedback.
● If you have any problems or be not satisfied with them, please feel free to contact us, we will reply to you within 24 hours.

Payment

● We accept multiple payment methods supported by the platform.
● We only accept your Ebay Address, Please Make sure it's 100% right.
● The items you ordered will be shipped out in 2 business days by Air Mail when your payment is clear.

● We care about our valued buyers, if you have any questions, our Customer Service staff will be very glad to help you. We try our best to reply to your emails as soon as possible, however, due to the high volume of daily incoming emails and time zone difference, we may not be able to reply to your emails immediately. Please allow 12 business hours for us to respond.

Guarantee

● Good quality. Buy with confidence!

● If you are not satisfied when you receive your item, please return it within 7 days for a replacement or money back. Please contact me before you return it.
● Full refund after we receive our original item, Note: Return shipping is to be paid by the Buyer.
● We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately before you give us neutral or negative feedback, so that we can satisfactorily address your concerns.

About item

●For the functional products in our shop, we make sure that the functions are the same as the description.

●About the product colour:Because of the different light and environment when the product is photographed, In a few instances the colour of the product may have a little colour difference with the actual colour of the product, I hope you can understand.