#400 = item code: 304-440
#800 = item code: 304-441
#1500 = item code: 304-442
#3000 = item code: 304-443

Dimensions = Φ25 x 8 x 2.35 mm / Diamond thickness approx. 1.5 mm
Max. speed = 9000 rpm
Grit = #400, #800, #1500, #3000

Can be used with micro grinder or flex shaft directly with shaft diameter 2.35mm. Diamond parts are resin-bonded and last longer than electroplated diamond. Good for sharpening, shaping, smoothing your carbide tools, hardened metal, knife, ceramic and stainless steel etc. Easy, faster, clean sharpening of your tools with mounted diamond grinding wheel.
Made in Japan