First, this model is not the high speed corded "drywall" screw gun that professionals hanging drywall all day would use (most have went to cordless drivers, anyway). This DW276 is Dewalt's versatile screw gun that runs from 0 to 2500 rpm with a positive clutch and 132 in-lbs of torque at 6.5 amps that delivers a lot of torque for it's application. If you want a dedicated drywall only corded screw gun, then the Dewalt DW272 at 0 to 3500 rpm, 81 in-lbs of torque and 6.3 amps, or the Dewalt DW255 at 0 to 5300 rpm, 60 in-lbs of torque and 6.0 amps are the correct tools. That said, we have owned several of these DW276's and commercially used, all still running (if they were not dropped 10 stories) with normal maintenance like cleaning and re-greasing the drive gears, replacing brushes before they ruin the motor, replacing damaged cords, etc. This is a versatile screw gun that without effort will drive #14 3" screws with a little wax, lag bolts (large need pre-drilled), etc., or small #6 screws.... the harder you push, the more torque is applied by the positive clutch that is not adjustable like some others that require manually adjusting the clutch setting, or a dual purpose drill/screw gun with variable clutch until locked to drill. You need to allow the clutch to do it's job instead of using like a drill so one, you can apply more or less torque and two, you don't strip the screw heads like a straight drill does. And yes, it will still drive drywall screws, but a bit slower than the other two that are dedicated for drywall with less torque. We actually remove the drywall head that is for depth adjustment and simply use magnetic bit holders. If we needed the depth adjustment, such as hanging drywall, it simply screws back on. If you want to use sockets, put in the adapter bought most anyplace for a few dollars for a set of 1/4", 3/8" and 1/2" drive. No, it is not going to remove lugs off your truck wheels, but sockets work for say, lag bolts, or those 5/16" sheet metal screws. Note: There are pros and cons with positive clutched and adjustable clutched screw guns (not to be confused with drill/driver), but adjustable clutches are maybe best for the beginner if they start at a lower setting to not strip screw heads, or you require a specific torque and can closely replicate with an adjustable clutch to then finish with a torque wrench. Regardless, this DW276 is a positive clutch and dependent on how hard you push to increase the torque instead of manually adjusting the torque on the chuck itself (1 to 10, etc.) This tool is simply faster for us and a wide variety of applications. It is simply easier to push harder or less than to play with torque adjustments that many set to maximum and you basically then have a drill. Hope this helps someone to clear up a little confusion.
