[Convenient and efficient] The garden screw drill can be perfectly matched with the standard electric drill, with strong grip and more convenient operation. It can dig 8x47cm with minimal force, saving energy and time. The perfect planting and gardening tools make work easier and faster. [Sturdy and durable] -The worm bit is made of high quality steel and the surface is coated with smooth black paint . It is very durable and can be used for a long time. It can be used as a professional garden planting auger. [Easy to Use] -The ground drill can be used with the drill bit every 3/8 inch or more inclination. It is recommended to drill hundreds of plants or a few light bulbs in a cordless electric drill at a voltage of 18v or more. A few minutes. It is recommended to exercise at least 31v: When holding the screw not in use, please clean the ground and debris. [No more reverse deformation] -It can continuously eliminate bending when drilling. Applications-The spiral boring machine is the choice of top gardeners when planting bulbs, pots, vegetables, flowers, bare-root trees and shrubs , tillage or planter, seed, soil, fertilizer, paint or batch mix, can improve the effectiveness of mortar mix used in hardscapes; the land drilling machine also effortlessly drills holes in pile holes and can even drill a hole in sandstone while on vacation.