<p><b>① </b>BUILD-IN CLUTCH disengages from drive-in function while reaching the workpiece. <br></p><p><b>②</b> Line up the screw, put this driver on the screw, then start drilling. <br></p><p><b>③ </b>It'll click when it reaches the depth, but if you lift off now it'll strip the screw a little. Instead, let the drill stop, then lift. <br></p><p><b>④</b> The clutch is position sensitive, so it disengages when it hits the wood, but reengages when you lift off. <br></p><p><b>⚠</b> Takes a couple tries to get used to, but not complicated.</p><p><b>⚠ </b>To remove and change the screwdriver bits, you simply need to pull out the bit with pliers and insert the new hex 1/4 bit.<br></p><p><b>⚠ Every standard hex 1/4 and 1 inch long screwdriver bit type can fit in the setter tool.</b></p><p><b>⚠</b> <b> Dimpler comes with 2pcs of top quality impact ready PH2 & 2pcs of T25 screwdriver bits. <br></b></p><p><b>You can also use your own Torx, Allen, Slotted, Robertson or other types of 1" bits.</b><br></p>