• Professional Drill Bits - Made of 5% Cobalt High Speed Steel with heat treament and hardness up to HRC 67, Ideal for drilling in cast iron, stainless steel, hard metal, copper and so on
• Superior Performance - Provides upgraded M35 Cobalt drill bits for high-temperature applications for extended periods of time and delivers 5x life vs. Standard bits
• Drilling a Precise Hole - 135 degree pilot point tip design to help reduce walking, Straight round shank design with better concentricity for precise drilling results
• Efficient - Tapered web helix design provides additional stability in tough applications, Large spiral flute facilitate the export of metal chips remove for fast drilling results
• HOW WE’RE DIFFERENT - We aim to make the best products to live a more convenient and secure lifestyle. We have a professional products monitoring team focusing on all the details

✔ Secure payments through eBay's system.

✔ We accept PayPal and all major credit cards.

✔ Payment must be completed immediately after purchase.

✔ For any payment issues, please contact our support team for assistance.

✔ Orders are shipped to the address provided at checkout. Please ensure it is correct.

✔ We process orders within 1 business day (excluding weekends and holidays).

✔ Delivery usually takes 3-5 business days.

✔ We use trusted carriers like UPS, FedEx, and USPS.

✔ Shipping is only available within the contiguous United States. No shipping to Alaska, Hawaii, Puerto Rico, or PO Boxes.

✔ Contact us if you experience any shipping delays.

✔ We offer a 30-day return policy.

✔ If you are not satisfied with your purchase, you can return it within 30 days for a full refund.

✔ Contact us to get the return address before sending back any items.

✔ Items must be returned in their original condition and packaging.