Hexagonal non-slip, suitable for standard electric drills. Powerful and easy to operate. It can dig holes 30 cm deep and 8 cm wide with minimal force, thus saving energy and time. The perfect gardening tool makes planting easier and faster. It is made of high-quality steel, and the surface is also coated with black gloss paint. It is very durable and has a long service life. Professional planters can also be used as garden drills. Our earth drill can be used with all 3/25" to 1/2" electric or cordless drills. It is recommended to use a bit of 18 V or higher. For cordless drills, it is recommended to use a drill with at least 14 V. Please be careful to remove dust and debris from the screws when not in use. If you grow onions, potted plants, vegetables, flowers, bare trees and shrubs, or use plant soil or flower beds, mixed seeds, fertilizers, our twist drills are the best choice for improving efficiency. It is also suitable for landscapes with hard mortar mixtures. Our drills can also easily dig holes in the sand, or even drill holes in the sand to attach an umbrella when you are on vacation, which is of great help to you. It can prevent bending when drilling, and even drill through loose stones, so you can plant bulbs and cushion plants where you need them.