1.Up to 100% long tool life

2.All shanks are ground to +0/-0.01mm

3.Tool jife is extended because each bar has more steel behind the cutting edge for heavier chatter free cut.Deeper bore and more precise work.

4. The same bar can bore flat bottom hole or face.Grind bar on cutting end for special tools such as grooving or automatic operation.

5.All 1/2",3/4" abd 1" shanks fit most boring and facing heads.