How Do Catalog Numbers Work?

Each character in our catalog number signifies a specific trait of that product. Use the following key columns and corresponding images to easily identify which attributes apply.

R8DA188181

R8DA188181
ShankToolholderToolholderTool
StyleStyleSizeLength
DA= Double-angle collet(Tool gage line
chuckto front of tool)
EM= End mill adapter
inch
SM= Shell mill adapterxxx = x.xx

DA = Collet series xxx (188) EM = I.D. size: metric — xx = xx, (20); inch — xxx = x.xx, (075) SM = O.D. size: metric — xx = xx, (20); inch — xxx = x.xx, (075)