Diablo 18" x 3/8" Universal Extension for Drills

The Diablo DHS375XT18 18" x 3/8" universal drill bit extension is the go-to solution for professionals needing deep reach and rock-solid bit stability. Built for high-performance drilling and cutting, this 18 inch drill bit extension features a snap lock mechanism that ensures a tight hold, making it ideal for hole saws and other demanding applications.

Whether you're working on construction framing, utility installs, or retrofits, the diablo 18″ universal drill extension delivers reliable performance in tough-to-access spaces. The 3/8" shank fits standard drills and hole saw mandrels, providing a secure and precise extension for any job.

• Universal Compatibility



Works with all 1/4" hex shank accessories, making it suitable for most drills and drivers.




• Extended 6" Reach



Ideal for reaching recessed screws, bolts, and tight construction spaces.




• Quick-Change Design



Allows fast accessory swaps with strong retention and minimal downtime on the job.




• Durable Steel Construction



Engineered for heavy-duty use with high torque impact drivers and drills.




• Secure Grip Locking



Reduces bit slippage and increases control during high-speed operations.