THIS IS A DAVIS 1/4 KEYSEATER BROACH, MANUFACTURED BY DAVIS KEYSEATER CO. GP. THE BROACH HAS A WIDTH OF 1/4” AND A HEIGHT OF 5/8”. THE LENGTH IS SPECIFIED AS 16” TYPICALLY, WITH AN OVERALL LENGTH (OAL) OF 21-1/8”. THE ITEM IS DESIGNED FOR ACCURATE KEYWAY BROACHING.