Online Posthole Diggers and Augers, ideal to create vertical post holes. Drilling augers with a flighting screw blade rotated from a helical screw. Diggers using scissor pinching action or wooden diggers to drive down reducing the risk of back fill. Insulated diggers are tested to 10,000 volts for increased safety. Leading brands Faithfull and Bulldog available to both Trade and DIY customers.