![Foredom No. 20 Quick Change Handpiece for Flexshaft Foredom No. 20 Quick Change Handpiece for Flexshaft](https://cdn11.bigcommerce.com/s-iic0hc/images/stencil/300x300/products/37383/47164/34.220__76889.1658864174.jpg?c=2)
![Foredom Number 20 Quick Change Handpiece for Flexshaft Foredom Number 20 Quick Change Handpiece for Flexshaft](https://cdn11.bigcommerce.com/s-iic0hc/images/stencil/160w/products/37383/47165/34.220photo2__49905.1658864174.jpg?c=2)
These cobalt twist drills are made of very hard steel that is used especially in high speed tools. These twist drills will drill through stainless steel, chrome-nickel, and other hard metals. They are particularly ideal for drilling platinum. And they last up to 30 times longer than standard drills!
**It is highly recommended that you use water or coolant when working with these drills**