DEWALT DWA1786IR-Step Drill Bit, Impact Ready, 3/16-Inch-7/8-Inch BLOWERS Helical-cut steel and heat-treated gears

Helical-cut steel and heat-treated gears for long life and durability of the screw gun

Jam Clearing: Open-nose

making the 8540LST a comprehensive solution for demanding cleaning tasks

78 dBA (tested per ISO3744) operational noise level for a quieter work environment

Dust- and Water-proof rated at IP65

DEWALT DWA1786IR-Step Drill Bit, Impact Ready, 3/16-Inch-7/8-Inch BLOWERS Helical-cut steel and heat-treated gearsEquipped with a split point tip that helps to increase speed and starts on contact, DEWALT Titanium Nitride Step Drill bit features an innovative double spiral flute design for long life and outstanding chip removal. Laser engraved numbers helps to increase step visibility. Optimized for impact drivers. Works with rotary drills. Includes 12 Steps: 3 16, 1 4, 5 16, 3 8, 7 16, 1 2, 9 16, 5 8, 11 16, 3 4, 13 16, and 7 8" Features Titanium Nitride Coating