It's quite important to make a hole in the ice before you start ice fishing. If you don't like to sweat and measure your hand power you can use these ice augers for power drills. Thanks to flange, your auger won't slip through the hole. Blades can be changed but remember that only Kide Spare Blades are suitable for Kide Ice Augers. These Ice augers can be used only with power drills so make sure you have a replacement battery with you. Always use the blade cover when transporting the ice auger. Never use the ice auger without side handle on drill. Fits drill chuck 10mm and above. Read instructions carefully before using ice auger!