Shapton Glass Whetstone Blade Reprofiling KitBlades with big chips and uneven bevels need to be reprofiled in order to achieve a new working edge, our Shapton Glass Whetstone Blade Reprofiling Kit will do the hard work in setting a new bevel and prepare the blade for higher grits. Start making those knives sharp again with this 3 piece kit, The kit includes: SHAPTON GLASS STONE HR 122. 50 MICRON #120 GRIT SHAPTON GLASS STONE HR 45. 94 MICRON #320 GRIT SHAPTON GLASS STONE HR 29. 40 MICRON #500