Ko te peere horoi waikeri he momo peere marama whanui atu i te peere kaupapa whanui.Kua hangaia mai i te 1000mm ki te 2000mm mo te 1t ki te 40t excavators.Kare i rite ki te peere GP, ka tangohia e te peere horoi poka te kaitapahi taha i te mata taha, ka whakakakahu i te mata tapahi tuarua hei utu mo nga niho me nga taapiri kia pai ake ai te mahi tohu me te whakataurite.Ina tata nei, ka taapirihia e matou te kowhiringa tapawha whakarewa mo to whiringa.