Grooving Face grooving Introduction Small diameter face grooving ø6~ Type STW Face groove diameter ø6 Edge width (mm) 0.5~2.0 Grooving depth (mm) 1.0~3.0 Twin-bars for horizontal type Type S..-STW Face groove diameter ø6 Edge width (mm) 0.5~2.0 Grooving depth (mm) 1.0~3.0 Type STWS Face groove diameter ø6 G Edge width (mm) 0.5~2.0 Grooving depth (mm) 1.0~3.0 Twin-bars for vertical type Small diameter face grooving ø8~ Type GFVS-AA Face groove diameter ø8 Edge width (mm) 1.0~3.0 Grooving depth (mm) 2.2 Type GFVT-AA Ground chipbreaker Face groove diameter ø8 Edge width (mm) 1.0~3.0 Grooving depth (mm) 2.2 Small diameter face grooving ø5~, ø8~ EZ-Bar Type EZFG ⇨ page12 Face groove diameter ø5, ø 6, ø 8 Edge width (mm) 1.0~3.0 Grooving depth (mm) 1.5~3.0 EZ bars Type VNFG Face groove diameter ø8 Edge width (mm) 1.0~3.0 Grooving depth (mm) 2.0~3.0 System tip-bars G81