I have a similar type whose model number is SX3001. Let me get to the point: It turned out to be a failure. First, it doesn't work so smoothly esp.,when I use it in the 2nd mode. I mean, the motor itself turns but the drill won't turn, which is so ridiculous to me. Sometimes the motor tends to burn and the battery runs down a bit too quickly. At this point, I'm quite disappointed at under-performance of cordless drill drivers. Again, this type is a total failure. The difference between my type and Z-SX3000 is that the former has the indication of battery power and the tiny LED, while the latter doesn't. But who cares? I should have known better to buy this vulnerable stuff!