Trend DWS/KIT/B Diamond Whetstone Honing and Polishing Kit, Silver Monocrystalline diamond allows fast, clean stock removal. Ideal for plane irons, chisels and TCT or HSS router bits. Continuous diamond on 1000 grit side prevents diamond and nickel lift, giving more effective anti-corrosion and prevents snagging on smaller tools. Honing guide insures correct angle is maintained on chisels and plane irons when used with diamond whetstone Honing guide comes with setting device pre-set for 25, 30, 35 and 40 degrees.