CHICAGO PNEUMATIC Air Powered, Pencil Grinder, Medium Duty ...
The collet of these pencil grinders accepts burs and mounted points with a 1/8" shank diameter. A 1/8" collet is the standard size for pencil grinders. Attachments with a 1/8" shank are typically used for lighter-duty work than those with a thicker shank, and for heavier-duty work than those with a …