Grooving Internal grooving EZG type Small diameter internal grooving EZ bar and system tip-bars Type EZG Min. bore diameter ø3~ø8 Edge width (mm) 0.5~2.0 Grooving depth (mm) 1.0~2.0 EZ bars EZ-Bar ⇨ page11 in special chapter between chapter E and F Type VNG Min. bore diameter ø4~ø7 Edge width (mm) 1.0~2.0 System tip-bars Grooving depth (mm) 0.8~2.0 G Internal Grooving ø8~ - shallow grooving Type SIGC 1-edge Min. bore diameter ø8~ø12 Edge width (mm) 1.0~3.0 Grooving depth (mm) 1.5~3.0 Ground chipbreaker Type SIGE 2-edge 2-edge Min. bore diameter ø8~ø12 Edge width (mm) 1.0~3.0 Grooving depth (mm) 1.5~2.2 Ground chipbreaker Ground chipbreaker Full-R Type GIV 1-edge 2-edge 2-edge Min. bore diameter ø12~ø40 Edge width (mm) 1.0~5.0 Grooving depth (mm) 1.7~6.3 Ground chipbreaker Ground chipbreaker Ground chipbreaker Full-R Type SIGE 2-edge 2-edge 2-edge Min. bore diameter ø14~ø40 Edge width (mm) 1.0~5.0 Grooving depth (mm) 2.5~6.5 Molded chipbreaker Ground chipbreaker Ground chipbreaker Full-R Type KIGBA Min. bore diameter ø35~ø40 Edge width (mm) 0.33~4.8 Grooving depth (mm) 0.8~2.8 Ground chipbreaker Ground chipbreaker GM chipbreaker MY chipbreaker Full-R G53