Manufacturer of DeHoff and Eldorado Deep Hole Drilling Machines


Many areas of the country have issued “Stay-at-Home” orders and have required “Non-Essential” businesses to close.  However, Kays Engineering has been designated as an “Essential Business” because we are a supplier of critical manufacturing industries as designated by the Department of Homeland Security – specifically medical and defense. 

We will remain open and able to serve your needs for parts, technical service, or new machine orders. 

Our company is taking every precaution as advised by the CDC to protect our employees and our community.  Please stay safe and look out for your neighbors and fellow Americans.

Precision machine tools Made-in-America

All DeHoff and Eldorado deep hole drilling and gun drilling machines are designed and manufactured in our 50,000 square foot facility in Marshall, Missouri, USA. Our meticulous attention to detail during the build process ensures that each machine leaving our plant will deliver superior performance for decades to come.

We take great pride in the excellent reputation our products have earned over the last half-century. Kays Engineering’s dedicated and experienced employees work hard every day to maintain that reputation and continuously earn our customers’ trust.

DeHoff gun drill

Quality, accuracy, and durability since 1956

Featuring a durable, heavy-duty design, DeHoff machines can be customized to suit your specific high-volume production application.

View the DeHoff product line

Eldorado gun drill

The most popular name in deep hole drilling since 1948

Ideal for companies that require maximum versatility, Eldorado machines deliver unsurpassed performance and reliability within a compact footprint.

View the Eldorado product line

Visit Kays Engineering at these upcoming Trade Shows:

Limited Time Only – ask about our “Shortened Delivery Time” and “In Stock” machines

DeHoff G548-D4 Gun Barrel Drilling w/ Automation – Shortened Delivery Time!

DeHoff G536-C1 Gun Barrel Cut Rifling – Currently In Stock!

Which machine is right for your application?

Call us! We're here to help you.

Ed Kays, President
660.886.9929 (ext. 116)