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Welcome to DIAGER USA

For over 50 years, DIAGER has been manufacturing quality drill bits for even the most demanding professionals. Our family-owned business strives to provide innovative products for working through the toughest materials including concrete, rebar, and stone.

We manufacture over 35 million drill bits per year. We are the innovators in the industry.

Want to learn more about Diager? click here to see our corporate video.

Click here to see what’s new with Diager USA!

Outside the USA, visit DIAGER.COM

NEW Download our 2010 Product Catalog, with many new items and sizes! Click Here