3 Point Hitch Post Hole Digger HD-6, HD-9, HD-12, HD-14, HD-18, HD-20 Power required: 20-70HP tractorMODEL HD-6 HD-9 HD-12 HD-14 HD-18 HD-20 DRILL DIAMETER 6”(152mm) 9”(228mm) 12”(304mm) 14”(355mm) 18”(457mm) 20”(508mm) LENGTH OF AUGER 673mm 914mm 559mm 762mm 762mm 762mm POWER MATCH 20-35hp 20-40hp 20-40hp 30-45hp 35