Exchangeable-Tip Drills Explained

These tools occupy a middle ground between the precision of solid carbide and the flexibility of indexable inserts.

This diagram depicts the tip interface of one of the more recently unveiled exchangeable-tip drills: Sandvik Coromant’s Corodrill 870. A webcast produced by the company provides an overview of some of the product’s most notable features.


The exchangeable-tip drill has earned its place as one of the top three drill types recommended for most common hole-making applications. However, as a relatively recent entry to the field that fills a middle, sometimes overlapping ground between the other two models, this design could potentially be underutilized. This article provides a basic overview of where exchangeable tips fit in vis-a-vis their solid carbide and indexable insert cousins.