Diablo 12" x 7/16" Universal Extension for Drills

The Diablo DHS500XT12 12" x 7/16" universal extension is a high-performance solution for professionals needing extended reach during hole cutting and drilling. Designed for use with hole saws and large drill bits, this 12 inch drill bit extension offers precision, durability, and secure bit engagement.

This diablo hole saw extension is ideal for deep cuts in framing, plumbing, electrical, and HVAC installations. With a 7/16 extension shank, it fits most standard arbors and drill setups, delivering control and consistency in high-demand work environments.

• 12-Inch Extended Length



Provides access to deep or obstructed drilling areas for clean, precise cuts.




• 7/16" Hex Shank Compatibility



Fits most hole saw arbors and large drill bits with a 7/16 shank connection.




• Reinforced Steel Build



Made from high-strength steel to withstand jobsite torque and pressure.




• Secure Bit Retention



Reduces wobble and ensures consistent, accurate drilling performance.




• Universal Application



Ideal for electricians, plumbers, HVAC techs, and general contractors.