3/16" - 1/2" IMPACT READY® Titanium Nitride Coating Step Drill Bit DWA1784IR-SBD

Dewalt's 3/16-in - 1/2-in IMPACT READY Titanium Nitride Step Drill Bit (DWA1784IR-SBD) is a precision-engineered hole-making tool designed for maximum durability and speed in metalworking applications. Featuring a Titanium Nitride coating and a dual-spiral flute design, this bit provides significantly longer tool life and superior chip removal compared to standard step bits. The split-point tip increases drilling speed and starts on contact to prevent bit walking, while the impact-ready 1/4-inch hex shank is optimized for seamless use with both impact drivers and rotary drills.
Key Features
Titanium Nitride Coating and dual-spiral flute design provide longer tool life and efficient chip removal.
Split-point tip starts on contact for immediate penetration and increased drilling speed.
6 step sizes (3/16-in to 1/2-in) allow for versatile drilling with 1/16-inch increments.
Laser-engraved numbers provide high visibility for quick and accurate step identification.
Impact-ready 1/4-inch hex shank is optimized for impact driver compatibility and prevents slipping.
Ideal for electrical, HVAC, and mechanical applications including drilling into panels and ducts.