A brother and sister were arrested after the incident.
They will appear in the Hamilton District Court today charged with assaulting police, resisting arrest, obstruction and threatening to kill.
Western Waikato Area Commander Inspector Paul Carpenter said those who assaulted police officers would face the "full extent of the law".
"This type of assault is very concerning when you consider our staff attend these types of jobs after receiving a call for help from either a victim or relatives and for them to be attacked when they arrive is simply not acceptable."
Mr Carpenter said both the officers were recovering well from their injuries.
The assault justified equipping police with tasers and pepper spray, he said.
"Their ability to resolve the situation speaks volumes not only of the quality of the two staff involved, the value of their training and the benefit of having a wide range of tactical options to manage situations."