Summary
Bulk Buy Option of our hero product, M35 four-spiral flute step drill bits. It has faster drilling speed and better chip removal efficiency than similar products, perfect for professional applications. Discover a wider range of sizes and single bit options here.
![Four Spiral Flute](https://cdn.shopify.com/s/files/1/0558/4591/2763/files/1_75cff3eb-1805-4508-86d1-365b2f7078a1.jpg?v=1660032245&width={width})
Four Spiral Flute
Four cutting blades design guarantees a faster and smoother cutting allowing swarf escape easily.
![Wide Application](https://cdn.shopify.com/s/files/1/0558/4591/2763/files/2_b76adb89-c955-4537-ae41-831b90e36806.jpg?v=1660032266&width={width})
Wide Application
Made with M35 Cobalt HSS. Perfect for Stainless Steel / Metal sheet / Wood, etc.
![Aluminum Titanium Nitride Coating](https://cdn.shopify.com/s/files/1/0558/4591/2763/files/3_122925e7-e378-401d-99b6-2c371cea111f.jpg?v=1660032285&width={width})
Aluminum Titanium Nitride Coating
10x lifetime longer with Titanium Coating. You can achieve higher cutting speeds. Feels like a hot knife through butter!
Specification
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