DEWALT DWA1790IR-Step Drill Bit Set, 3-Piece Blowers The blade diameter is 4

The blade diameter is 4 inches with a maximum cutting depth of ¾ inches

And there's no need to drain the fuel for storage

Featuring a durable German-engineered hammering mechanism

Double-edged planer blades for longer life

One hand forward/reverse push button for easy operation

DEWALT DWA1790IR-Step Drill Bit Set, 3-Piece Blowers The blade diameter is 4The DEWALT Metal Drill Bit Set features 3 innovative titanium step drill bits to power through a range of applications. Each drill bit is equipped with a split point tip that helps to increase speed and starts on contact. An innovative double spiral flute design delivers long life and outstanding chip removal. Laser engraved numbers helps to increase step visibility. Optimized for impact drivers. Works with rotary drills. Includes 1X DEWALT Step Drill