1.Sturdy MaterialThe garden drill is made of high-quality manganese steel, and the handle is made of A3 steel, which is sturdy, durable and not easy to deform. The surface is coated with high-gloss black paint to protect the garden drill bit from rust. EfficientThe spiral design ensures efficient digging and emptying of soil without difficulty. Use a low-speed drill bit (slow speed) and then drill into the suitable ground or landscape. The rear auger can easily dig a hole in seconds and works well even on a bit hard ground. Note: Not suitable for large rocks or solid rocks Applicable MachinesThe two garden drill bits can be used with any drill with a 3/8" or larger chuck. But it is better to use an 18 V or higher drill bit (at least 14 V for a cordless drill) to get a better experience and save working time Twist Drill 80 x 300mm is used to quickly dig a hole with a diameter of 80mm and a depth of 300mm. It can help you plant many different sized plants and is very useful for helping you create a beautiful small garden. Wide ApplicationThese augers are ideal for professional gardeners and are great for planting bulbs, potted plants, vegetables, flowers, bare-root trees and shrubs, cultivating soil and mixing seeds. After use, always keep the drill bit clean so that you can achieve the best use results every time. Multiples 2. EfficientThe spiral design ensures that there is no difficulty in effectively digging and emptying the soil. Use a low-speed drill bit (slow speed) and then drill into the appropriate ground or landscape. The rear auger can easily dig a hole in seconds and works well even on a bit hard ground. Note: Not suitable for large stones or solid rocks 3. Applicable MachinesThe two garden drill bits can be used with any drill with a 3/8" or larger chuck. But it is better to use an 18V or higher drill bit (at least 14V for a cordless drill) to get a better experience and save working time 4. Twist Drill 80 x 300 mm. Used to quickly dig a hole with a diameter of 80mm and a depth of 300mm. It can help you plant many plants of different sizes, very helpful for you to create a beautiful small garden 5. [Wide Application] These augers are ideal for professional gardeners, perfect for planting bulbs, potted plants, vegetables, flowers, bare-root trees and shrubs, cultivating soil and mixing seeds. After use, always keep the drill bit clean so that you can achieve the best use every time