We have been serving the drilling industry since 1985 ,we provide clients with quality drill bits ,drill pipe and related products. Regarding the drill bits,we can supply the Sizes range from 6 " to 26 "with a large selection of both new and used Rock bits, and matrix bodied PDC drill bits which service drilling operation.We aslo buy great quantity of scrap PDC and TCI drill bits worldwide , pls contact us if you have access to scrapdrill bits used TCI and milled steel tooth bits the size is "8-1/2","9-1/2","12-1/4","15-1/2","17-1/2 If you can provide .please contact me:ivy my email:ivysun2008@yahoo.cn