. Description: This set contains 10pcs of re-sharpened carbide drill bits. Tool Specifications: - OAL: Just under 1.50" - Shank: 3.175mm diameter - Ring Set: .800" Contents - 1pc each: #30, #29, #28, #27, #26, #25, #24, #23, #22 & #21 . 114-10W30-21$18.25 Call: 847-419-1267              Fax: 847-419-1241              Email: Drills2001@aol.com