Until you try one, you simply won’t believe how effortlessly an Impact Driver drives screws. Unlike Driver/Drills that simply rotate the drill or driver bit, Impact Drivers apply a series of high-speed rotary hammer blows to the driver bit, just like the impact wrench the tire guy uses to install lug nuts. That rotary force minimizes the axial force (pushing) required to keep the driver bit in the recess, so screws seem to just “melt” right in!

Power Driver Comparison Test:
Batteries were fully charged for the test tools. Each tool then drove our No-Co-Rode #8 x 3” deck screws continuously until unable to fully sink the screw in a “fresh from the lumber yard” pressure-treated (Copper Azole process) pine test block.

Model	Type	Battery	Weight	# Screws Driven
Makita LXT BTD140	Impact	18v - 3Ah	3.3 lbs	249
Makita 6980FDWDE	Impact	12v - 2.6Ah	3.5 lbs	212
Makita 6217D	Driver/Drill	12v - 2.6Ah	4.2 lbs	166
Makita 6935FDWDE	Impact	14.4v - 2.6Ah	3.7 lbs	247
Makita 6337D	Driver/Drill	14.4v - 2.6Ah	4.4 lbs	205
DeWalt DC983KA	Driver/Drill	14.4v - XRP	5.7 lbs	132