Review on TEKTON 2905 7-Piece Impact Screwdriver Set - 3/8 Inch Drive for Efficient Fastening by Mike Phillips

Worked great. I managed to remove the front rotor setscrews on my Hyundai Elantra GT. I didn't use the bits that came with it. I used a 3/8 Philips head 3rd penetrating oil. Let stand about 10 minutes. Then place a screwdriver on the screw, hit it with a small sledgehammer with medium force while pushing the screwdriver into the rotor. At about 6 swings, the screw turned a little, another waved and failed. No broken screws! The screws popped out in minutes. Worth every penny. I wish I had had this, when I did the rear rotors I removed 3 of the four bolts even after using penetrating oil and hitting the rotor with a hammer to loosen it. Wasted 4 hours and got mad.