Top Clamp  KGA F1 T B A L2 L1 H3 25゜ h H2 H1 • Right-hand shown  Toolholder Dimensions Std. Dimension (mm) Spare Parts Clamp Clamp Bolt Spring Wrench Description R L H1=h H2 H3 B L1 L2 F1 A T KGA & 2020K -3  20 5 6 20 125 37 21.5 2.3 20 CGA-3 & 2525M-3  25 - 25 150 26.5 2020K -4  20 5 6 20 125 37 21.5 3.3 20 CGA-4 & HH6X20 SP-6 LW-5 G 2525M-4  25 - 25 150 26.5 2020K -5  20 5 6 20 125 42 21.5 4.3 25 CGA-5 & 2525M-5  25 - 25 150 26.5 · Dimension T shows available grooving depth. · Clamp: CGA-R for Right-hand Toolholder, and CGA-L for Left-hand Toolholder.  Applicable Inserts (mm) Grooving Description L H P Carbon steel / Alloy steel Classification of usage GH4020-~GH8020- 20 M Stainless Steel GH10025-05~GH12025-05 25 7.5 K Cast Iron   : Continuous-Light Interruption / N Non-ferrous Metals 1st Choice GHU- 20 S Titanium Alloys : Continuous-Light Interruption / GA30, GA40 25 2nd Choice 5.0 H Hard materials (~40HRC)   : Continuous / 1st Choice GA50 30 Hard materials (40HRC~)   : Continuous / 2nd Choice Dimension (mm) Cermet CVD Coated Carbide PVD Coated Carbide Ceramic Carbide Applicable Ref. to Page Insert Description TN60 TN90 TC40N TC60M CR9025 PR930 KW10 A65 A66N PT600M Toolholders for Applicable W rε Toolholders GH 4020-02 4.0 0.2      4020-05 0.5         KGH &…4 4520-02 4.5 0.2  KGHS &…4 W±0.053゜ 4520-05 0.5  5020-02 5.0 0.2      3゜ L rH 5020-05 0.5         6 H 5520-02 5.5 0.2  5゜ 120゜ 5520-05 0.5  KGH &…5 Ground Chipbreaker 6020-02 6.0 0.2      KGHS &…5 6020-05 0.5        G38 6520-02 6.5 0.2  3゜ 6520-05 0.5  W±0.05 7020-02 7.0 0.2      3゜ L rH 7020-05 0.5        H 7520-02 7.5 0.2  KGH &…7 5゜ 120゜ 7520-05 0.5  KGHS &…7 Ceramic insert is 8020-02 8.0 0.2      Ceramic above shape 8020-05 0.5      10025-05 10.0 0.5    KGH &…10 12025-05 12.0 0.5    W±0.053゜ KGH &… 3゜ GHU 40-20 4.0 0.25   4KGHS &…4 L rH G38 10゜ H 50-20 5.0 0.30   KGH &… Molded Chipbreaker 5゜ 120゜ 60-20 6.0 0.30   5KGHS &…5 ±0.05 5゜ rH GA 30 3.0 0.20   KGA &…3 5゜W L 40 4.0 0.25   KGA &…4 G39 H 120゜ 50 5.0 0.30   KGA &…5 Recommended Cutting Conditions G102~G103  : Std. Item Inserts are sold in 10 piece boxes. G39