3/16" 2FL 5/16LOC 2OAL 3/8Shk DE SQ TiN SC EM GP

​General Purpose Square Double End  30 Degree Helix 10% micrograin carbide.
 
All tools hones to improve tool life.  For maximum flexibility, General Purpose tools are available Uncoated., TiN and TiALN Coated for added durability and performance.