Works with conventional nipples
Threading nipples to the spokes is the most time consuming part of building wheels. Thanks to  the speed nipple bit you can now do it with the cordless screwdriver, save yourself some time  and still have all the nipples threaded on the spokes to the same depth.
A protruding part in the center of the speed nipple bit keeps the nipple centered and prevents  the tool from slipping off it. Eventually, as the nipple is fully threaded down the spoke, the  protruding part of the tool touches the approaching spoke and unseats the driver. This enables  that all the nipples are threaded down the spokes to the same depth, which leaves you with the  perfect starting point to build great wheels.