Teat Instruments are used to make an incision from inside to the outside. These instruments are inserted into the teat canal and then are used to cut from inside to outside. These instruments have a slim and very sharp blade. They are constructed from surgical stainless that can be sterilized in an autoclave. Lichty Teat Knife-SharpBlunt and Teat Curette Cornell CornellSwedish are commonly used in large animal procedures.