Double Up For More Power! This is the offset course/fine tooth combination mounting the coarse 14 tooth Lancelot first with the fine 18 tooth Squire on top. When holding the grinder with the blades at between 25 to 30 degrees to the material, you have 32 teeth sweeping or raking material away sideways or in downward strokes. With the aggressive Lancelot as the workhorse combined with the fine finish of Squire, stock removal is rapid, leaving a relatively smooth surface. The choice may come down to the number of teeth you want and how you want to use them individually for detail work. In this combination, Lancelot has a larger kerf with coarse teeth while Squire has a smaller kerf and fine teeth.