How is a driver different from a drill? What
Hello, W/D here.
A very good question......A drill holds a bit and rotates it at a given speed. This speed can be variable, allowing the speed of the drill bit to be better matched to the material being drilled. The output from the drill motor goes directly to the chuck, and the power is directly applied to the drill bit. Some drills can generate a tremendous amount of direct torque, due to the nature of their gearing. Most of the better drills have planetary gears in them.
A driver rotates like a drill, but is designed to apply torque to a driving bit, and cause a fastener to be placed by the driver. The main difference between a drill and a driver is that a driver has an adjustable clutch, allowing the amount of torque being applied to a fitting to be preset. A good example of this would be for driving wood screws. You would dial in the torque setting that you want the driver to quit driving the screw. You don't want to drive the screw to China, you want to drive it flush. A maximum torque setting "locks" the clutch, and the fitting will be driven as far as it can go (This is about as close to being called a drill as a driver will ever get). A clutch setting midway might be just right for driving the same fitting into oak, and a setting at less than that might be just right for pine. The torque clutch effectively sets a kick out torque for the driver. When the torque applied matches the torque set on the driver, the clutch "slips", and no further driving action can occur.
Most modern battery powered drills incorporate a torque clutch between the motor and the chuck so that the tool can be operated as a drill (with the torque setting at "max") or as a driver (with the torque setting at less than max) some electric tools are configured as both, but usually they are different. For the money, a good battery powered drill/driver with a clutch offers more versatility, in my opinion.
Best regards, --W/D--
Aug 19, 2009 |
Dewalt Post Drivers & Pullers