
SEC-Grooving Tools GNDType Necking Facing Necking Grooving/traverse turning/Profiling GNDN type GNDF type GNDFS type Straight type Straight type L type Shank size Shank size Shank size (vertical x horizontal) (vertical x horizontal) (vertical x horizontal) □20 × 20 mm □20 mm × 20 mm □25 mm × 25 mm □25 × 25 mm □25 mm × 25 mm □32 mm × 32 mm F31 F33 F35 Corresponding edge widths (mm) Corresponding edge widths (mm) Corresponding edge widths (mm) 1.25 1.5 2.0 1.25 1.5 2.0 1.25 1.5 2.0 3.0 4.0 5.0 3.0 4.0 5.0 3.0 4.0 5.0 6.0 7.0 8.0 6.0 7.0 8.0 6.0 7.0 8.0 Applicable chipbreaker Applicable chipbreaker Applicable chipbreaker MG ML GG GL GF RG RN CG GA MG ML GG GL GF RG RN CG GA MG ML GG GL GF RG RN CG GA MG : Multi-purpose/general purpose type ML : Multi-purpose/low feed type GG : Grooving/general purpose type GL : Grooving/low feed type GF : Grooving/low cutting force type ■ Undercutting Series RG : Profiling/general purpose type RN : Facing/Necking/general purpose type CG : Cut-off type GA : Non-ferrous metal/general purpose type Shank size Type Edge width (mm) Max. groove depth (mm) Min. machining diameter Applicable chipbreaker (mm) Type Page (mm) Height (H) Width (B) 2 3 4 5 6 5 10 15 20 25 30 MG ML GG GL GF RG RN CG GA 2 2.0 ø20 G Straight type Min. machining diameter 20 20 3 2.5 ø20 G 4 GNDN 3.0 ø30 → F31 G 45° 25 25 5 3.5 ø30 G F : Stock 6 4.0 Max. groove depth ø30 G: 1st recommendation S: 2nd recommendation Red Letters: Expanded product G Grooving Tools Grooving MG : Multi-purpose/general purpose type ML : Multi-purpose/low feed type GG : Grooving/general purpose type GL : Grooving/low feed type GF : Grooving/low cutting force type ■ Facing Series RG : Profiling/general purpose type RN : Facing/Necking/general purpose type CG : Cut-off type GA : Non-ferrous metal/general purpose type Cut-Off Shank size Type Edge width (mm) Max. groove depth (mm) Machining dia. (mm) Applicable chipbreaker Threading (mm) Type Page Height (H) Width (B) 3 4 5 6 7 8 5 10 15 20 25 30 50 100 150 200 250 300 1,000 MG ML GG GL GF RG RN CG GA 3 12 ø35 ø45 G G G G G G G 3 12 ø40 ø55 G G G G G G G 3 18 ø50 ø70 G G G G G G G 3 GNDF 18 ø65 ø100 → F33 G G G G G G G 3 18 ø90 ø150 G G G G G G G 3 18 ø140 ø200 G G G G G G G 3 18 ø180 ø300 G G G G G G G 4 18 ø40 ø55 G G G G G G G 4 23 ø50 ø70 G G G G G G G 4 23 ø65 ø90 G G G G G G G Straight type 4 GNDF 23 ø85 ø130 → F33 G G G G G G G 20 20 4 23 ø125 ø200 G G G G G G G 4 23 ø180 ø300 G G G G G G G 25 25 4 23 ø280 ø1,000 G G G G G G G 5 23 ø50 ø70 G G G G G G G 5 23 ø65 ø90 G G G G G G G 5 GNDF 23 ø85 ø130 → F33 G G G G G G G 5 23 ø125 ø200 G G G G G G G 5 23 ø180 ø300 G G G G G G G 5 23 ø280 ø1,000 G G G G G G G 6 23 ø50 ø75 G G G G G G G 6 23 ø70 ø110 G G G G G G G 6 GNDF 23 ø100 ø200 → F33 G G G G G G G 6 23 ø180 ø300 G G G G G G G 6 23 ø280 ø1,000 G G G G G G G 6 20 ø70 ø100 G G G G G G G 6 20 ø100 ø200 G G G G G G G 6 GNDFS 20 ø180 ø300 → F35 G G G G G G G 6 20 ø280 ø1,000 G G G G G G G L type 20 20 6 20 ø450~ G G G G G G G 25 25 8 20 ø70 ø100 G G G G G 8 20 ø100 ø200 G G G G G 8 GNDFS 20 ø180 ø300 → F35 G G G G G 8 20 ø280 ø1,000 G G G G G 8 20 ø450~ G G G G G : Stock : Made-to-order item G: 1st recommendation S: 2nd recommendation Red Letters: Expanded product F16