This pack contains 5pcs of #97 (.0059). These New Micro Drill Bits are made of Tungsten Carbide. The over all length is 1.50". The shanks have a diameter of .1250 and all have identification rings on them. 05WS97$57.20 Call: 847-419-1267              Fax: 847-419-1241              Email: Drills2001@aol.com