1. All sizes available 2. Large inventory on hand 3. Low cost 4. Can be customized 1. Come in many shapes and ... 4 1/2,4 5/8,5 1/2,6 ,6 1/2,6 3/4,7 7/8,8 1/2,8 3/4,9 1/2,9 ... 5/8,9 7/8,10 5/8,12 1/4,13 3/4,14 3/4,14 ... 5/8,16,17 1/2,20,22,23 ,24 ... HJT,HF,YC,SKG,SKW,SKF,A Series, etc.Please contact us for more information! 14 1/2" IADC116 milled tooth rock bit