Rubber Diamond grinding polishing wheel for steel and carbide engravers. will also polish
porcelain and zirconia. the shank size is 3/32" and the wheel is 26 x 2.35 mm. works just like the expensive ones!!! please specify which color in the notes. The $35 cost includes USPS 1st class mail shipping within the USA. current deliver is 2 1/2 weeks because of back orders.