Review on ⚒️ Superior Performance with Kodiak Cutting Tools KCT136200 Premium by Julio Montano

This is what you need when making 80% lower AR. Great beat! Just the right length and diameter. The advantage of a carbide drill, in addition to strength, is that the cutting diameter and the shank are the same size. So if you're using a jig, don't cut anything else. That's good for aluminum. The length of this bit is critical when using an AR mount as it is long enough to fit the collet while still clearing the buffer tube threads and reaching the required depth. Used for Alum 7075 and 6061.