Features: ● For raw materials of general steel, castings, and carbon steel. A whetstone with a shaft made of high toughness A (random) whetstone. Widely used for general grinding. ■ Applications: ● High hardness A (blue) whetstone with axis. Suitable for: casting, general steel, low carbon steel, carbon steel (raw material). Suitable for: Ductile, Malaver, Meharnite, Carbon Tool Steel (SK) ■Specifications: ● Grit Size (#): 36 ● Shape: Tongali ● Outer Diameter (mm): 16 ● Width: 1.3 inches (32 mm) ● Shaft Length (in): 1.5 inches (38 mm) ● Maximum Rotational Speed (rpm): 47,000 ● Weight: 105 g ● Compatible Tools: Trusco (Air Grinder), Minimo, Minimo, Minimo, Nakanthole Series (Airsonic), Utani (Pencil Grinder), Yokota (Midget Grinder), NPK (Die Grinder), Fuji (Baby Grinder), Urawa Industry (Rotary Handpiece), Vessel (Air Micro Grinder), Super (Micro Air Grinder), Japanese Precision Machine Tool, (Rutter), Muraki (ZemNew Motor, φ6 mm), JAN Code: 498999143379999999914 (Material/379 Finish; Shaft: Steel (S45C); Caution: Always wear protective gear such as safety caps and safety glasses when working.