Nishigaki Industrial Drill Sharpener Ace Whetstone N-860-1

[Specifications] Outer Diameter (mm): 50 Height (mm): 20 Grinding Stone Material: CBN Grinding Stone Dimensions (mm) Outer Diameter x Thickness: 50 x 20 Grinding Stone Diameter (mm): 50 Grit (#): 200 Edge Grinding Angle (°): 118 Grinding Stone Life: Approximately 300 uses with a 6.5mm drill Applicable Models: N-860, N-861 Material CBN 200# Set Contents Caution: Cannot be used to sharpen carbide drills or concrete drills. Outer Diameter (mm): 50 Height (mm): 20 Grinding Stone Material: CBN Grinding Stone Dimensions (mm) Outer Diameter x Thickness: 50 x 20 Grinding Stone Diameter (mm): 50 Grit (#): 200 Edge Grinding Angle (°): 118 Grinding Stone Life: Approximately 300 uses with a 6.5mm drill Applicable Models: N-860, N-861