1.2 Size The Earth Auger Set Contains 2 Different Sizes Of Twist Drills: 8 X 30 Cm (3 "X 12"), 4 X 22 Cm (1.6 "X 9"). This Large Earth Auger, Suitable For Digging Large And Deep Holes; This Small Auger, Suitable For Small And Shallow Holes.^ 2.High Quality Material Made Of High Quality Manganese Steel & Steel, This Makes It Durable And Not Easily Deformable. The Surface Has A Black Coating And Is Not Easy To Rust.^ 3.High Efficiency Spiral Design For Easy Digging Of Soil. Use The Earth Auger In A Suitable Landscape At Low Speed (18V Or More Bit Recommended.) A Hole Can Be Drilled In A Few Seconds. Note Not Suitable For Large Or Hard Stones.^ 4.Wide Application The Garden Auger Set Is A Professional Choice For Landscapers, It Simplifies Drilling Tasks, Great Diy Tools For Planting Potted Plants, Flowers, Vegetables, Bare-Root Trees And Shrubs, Mixing Seeds, Fertilizer, Soil, Paint Or Mortar Mixes, Taking Soil Samples, Drilling Plant Holes Or Erecting Fences.^ 5.Note: 1.Due To The Difference Between Different Monitors, The Picture May Not Reflect The Actual Color Of The Item. 2. Due To Manual Measurement, There May Be 1-2Mm Error. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia