Product Description Round Jaws, serrated both sides for Viper3 Chuck. Set of 4 optional jaws for our Viper3 geared scroll chuck. These parallel sided jaws have a serrated edge both internally and externally for maximum gripping of both recesses and spigots. Jaw projects 14mm from the base plate. Expands from 46mm to 81mm Contracts from 67mm to 32mm
