Carbide Drills for Heavily Choked Tubes Filters Sort results Reset Apply Model No.Tube ID / Size (mm)Tube ID / Size (inch)PriceCB-2506.41/4 39 + CB-3759.53/8 39 + CB-43011.17/16 39 + CB-50012.71/2 39 + CB-56014.39/16 39 + CB-62515.95/8 39 + CB-68017.511/16 39 + CB-75019.13/4 50 + CB-87522.27/8 50 + CB-100025.41 50 +