Trend DWS/HG/SET Diamond Stone Honing Guide Set Easy to use and set angles with positive location for roller and blade The unique setting devise is preset for 25 Degree , 30 Degree and 40 Degree angles Apply gentle pressure and use with Trend lapping fluid. Wide roller to ensure no rocking during use Clamps chisels from 3/8-Inch to 2-3/8-Inch wide. Not for use with firmer chisels or Butt chisels