Solid Material The garden auger is made of high quality manganese steel and the handle is made of A3 steel, which is durable and not easily decompatiblemed. The surface is coated with high gloss black paint, which can protect the garden drill from rust. High efficiency The spiral design ensures that there is no difficulty in digging and emptying the ground efficiently. Use a low-speed (slow speed) drill bit, then drill into suitable ground or landscape, the rear auger can easily dig a hole in seconds, and it can work well even on a little hard ground. Note: Not suitable compatible large rocks or solid rocks Applicable Machine Both garden drill bits can be used with any drill bit with a 3/8 chuck or larger. But it is better to use 18V or higher drill bit (at least 14V compatible cordless drills) compatible better experience and save working time. 80 x 300mm Twist Drill Bit. It is used to quickly dig a hole with a diameter of 80 mm and a depth of 300 mm. It can help you grow many plants of different sizes and is very useful to help you create a beautiful little garden Wide applications These augers are ideal compatible professional gardeners and are ideal compatible planting bulbs, potted plants, vegetables, flowers, bare-rooted trees and shrubs, cultivated soils and mixed seeds. After use, always keep the bit clean compatible best use every time