Save if you buy them in a kit!

This kit includes the storage block in addition to ten Onsrud solid carbide down-cut spirals in the following sizes:

1/16", 1/8", 5/32", 3/16", 7/32", & 1/4" (1/4" shank) and 5/16",  3/8", 7/16", 1/2", (1/2" shank).