I have 3 different models here , skid steer mount post hole augers with 3 bits . ( Can be used on excavators as well with a simple modification to your bucket . ) . The 1st model pictured in 1st set of pictures is $2400 as it has 5' long hex drive auger bits at 8" , 12" , 18" diameters . the 2 sets with round drive shafts are $2000 with 4' long augers at 6" , 12" , and 18" . thank you 978-4six2-9099 land line, no texts . leave message as im usually out back but check often