hollow grinding fixture

[Rey]

Does anyone know of someone selling a used hollow grinding fixture sold by jantz supply?

[kdkerr2]

Before I retired from the tool & die trade we used a fixture to hollow grind knifeblades. It was just a flat steel plate with a dowel pin in the middle of it. The dowel pin located the blade blank and kept it in position. You have to have a surface grinder with a magnetic chuck and a coolant feed to use this fixture. Without coolant you would burn the blade and make it useless. Then you bring the wheel down on the blade and put your hollow in it by moving the blank back and forth. The dowel pin does two things: it keeps the blank in position and it provides a pivot point for the curved portion of the blade. This process is very messy because of the coolant but you can wear rubber gloves and this will help out somewhat but be advised it's a good idea to keep your mouth shut while doing this.
KK