3 x 12 inch & 1.6 x 16.5 inch Egifty Garden Twist Drill Bit, Auger Bit for Planting Flower Used for planning our garden. It was very easy to drill a hole and get the dirt out. I twisted the device while it was outside and all the dirt just flew out. This left me with a very nice/deep hole for planning veggies. The smaller slot didn't work either. Maybe because the ground is too soft. but it's just screwed into the ground. I tried to pull it out but it's too heavy. When I turned it over it just came out and the dirt didn't stick. It seems like it went too smooth. I used a small 20V drill. It was very easy with the big block.