KEYSTONE Stone Chuck - Right Hand, With 1/4in (6.3 mm) arbor hole. For standard - #1260080
STONECHUCK - Right Hand, With 1/4" (6.3 mm) arbor hole. for standard lathes with 3/8" shaft. When searching forKEYSTONE Dental products, if you are not able to find the KEYSTONE Dental product you are looking for. Let us know, we will contact KEYSTONE Dental products and bring what you are looking for.