Using these PADLOC bladed teeth with your A6, A8, or RC4 auger bits is straightforward. Just follow the one - step tooth replacement process: knock the teeth in and out when needed. Since no special tools are required, you can easily do this on your own. When using the bits, they work best in light to moderate ground conditions such as loose dirt. For maintenance, regularly check the bonded friction pads in the PADLOC tooth locking system to make sure they are in good condition. If you notice any signs of wear on the teeth or the locking system, replace the parts promptly to keep your drilling operations efficient.