YOU ARE BUYING 5 PIECES ( 1 FACTORY PACK ) OF NEW KENNAMETAL CUSTOM MADE IN THE U.S.A. CARBIDE #3 INSERT SIZE TOP NOTCH GROOVING INSERTS . STEEL GRADE KC5010 . THEY COME IN THERE FACTORY PACKAGE . THESE INSERTS SHIP FOR FREE. THESE INSERTS WERE MADE TO PRINT FOR A SPECIFIC CUSTOMER AND JOB . I AM GIVING ALL THE INFORMATION I CAN GET USING A MICROMETER, RADIUS GAGES, AND CALIPERS THESE HAVE !!!!NOT BEEN DIGITIZED!!!! . THESE HAVE A .100" INCH RADIUS ON THE OUTSIDE EDGE AND A .015" INCH RADIUS ON THE INSIDE EDGE AND ARE A SINGLE END LEFT HAND INSERT AND ARE ALTIN COATED . THEY WILL FIT IN ANY TOP NOTCH #3 SIZE INSERT SEAT HOLDER . THE OTHER END IS USABLE AND HAS A .196" INCH FULL CUT WIDTH SQUARE END  . FEEL FREE TO ASK IF YOU HAVE ANY QUESTIONS .