Summary of Internal Grooving Small Dia. Internal Grooving φ3~ (G43~G46) EZ Bars, 2-Edge Tip-Bars & System Tip-Bars Type EZG Min. Bore Dia. φ3~φ8 Edge Width (mm) 0.5~2.0 Grooving Depth (mm) 1.0~2.0 EZ Bars Ref. to Page G43 Type HPG Min. Bore Dia. φ4~φ7 Edge Width (mm) 1.0~2.0 Grooving Depth (mm) 1.0~2.0 2-Edge Tip-Bars Ref. to Page G46 G Type VNG Min. Bore Dia. φ4~φ7 Edge Width (mm) 1.0~2.0 Grooving Depth (mm) 0.8~2.0 System Tip-Bars Ref. to Page G45 Grooving Internal Grooving φ8~ (G47~G57) Shallow Grooving Type SIGE 2-edge 2-edge Min. Bore Dia. φ8~φ12 Edge Width (mm) 1.0~3.0 Grooving Depth (mm) 1.5~2.2 Ref. to Page G49 Ground Chipbreaker Ground Chipbreaker Full-R Type GIV 1-edge 2-edge 2-edge Min. Bore Dia. φ12~φ40 Edge Width (mm) 1.0~5.0 Grooving Depth (mm) 1.7~6.3 Ref. to Page G54 Ground Chipbreaker Ground Chipbreaker Ground Chipbreaker Full-R Type SIGE 2-edge 2-edge 2-edge Min. Bore Dia. φ14~φ40 Edge Width (mm) 1.0~5.0 Grooving Depth (mm) 2.5~6.5 Ref. to Page G49 Molded Chipbreaker Ground Chipbreaker Ground Chipbreaker Full-R Type KIGBA Min. Bore Dia. φ35~φ40 Edge Width (mm) 0.33~4.8 Grooving Depth (mm) 0.8~2.8 Ground Chipbreaker Ground Chipbreaker GM Chipbreaker MY Chipbreaker Ref. to Page G56 Full-R Type KITG * KITG will be switched Min. Bore Dia. φ35~φ45 to KIGBA. Edge Width (mm) 0.75~4.5 Grooving Depth (mm) 2.0~2.5 Ref. to Page G57 Ground Chipbreaker G41