Maximize your planting productivity with the newest digging technology, The MAXBIT. Simply attach The MAXBIT to a power drill, pull the drill trigger, then push the engaged tool into the ground to create a planting hole. THE MAXBIT's patented curved-angle design blades push dirt out of the ground and to the sides, leaving a round, flat-bottom hole that is ready for planting. Choose from two size bits to create holes to fit standard 4-inch or 6-inch potted plants or various-sized bulbs. Add the 25-inch extension (item number MBEXT) to eliminate squatting and bending comfortably stand while you dig holes! Made in the USA of steel and powder-coated for long life. The MAXBIT fits all 3/8-inch drills. The MAXBIT recommends using a 18 to 24 Volt or higher drill.