GMN Classification of usage P Carbon steel / Alloy steel M Stainless Steel : Continuous-Light Interruption / K Cast Iron Applicable Toolholders 1st Choice N Non-ferrous Metals Ref. to Page for : Continuous-Light Interruption / S Titanium Alloys 2nd Choice : Continuous / 1st Choice H Hard materials (~40HRC) : Continuous / 2nd Choice Hard materials (40HRC~) Dimension (mm) Angle CBN PCD Insert Description KBN510 KBN525 KPD001 KPD010 W rε M L H θ GMN 2 2.0 0.2 1.8 0.4 S 2゜ W±0.05 3 3.0 0.2 2.3 M 0.4 2゜ rH 4 4.0 0.2 3.3 20 4.3 - G34 L 0.4 G35 H 0.2 S=2.9 5 5.0 0.4 4.2 Deep Grooving 6 6.0 0.2 5.2 G 1-edge 0.4 Recommended Cutting Conditions G104 ■ AKvGaiMla型b(le自Cu動tt盤in用g D)・iKamGeMte-rTo型f のKGM 加(Fo工r可au能to径mにatつicいlaてthe) / KGM-T Grooving ・·ワThーeクre径isにaよlimっitてto、加av工ail可ab能le溝gr深ooさvinにg制de限pがthあdeりpまenすdi。ng on the 20(Dimension t, I40) workpiece diameter. 18(Dimension t, I130) I130 (ID:IC4u0tting Dia.) 25 If the workpiece diameter is large, the available grooving depth becomes smaller due to interference with the toolholder. e.g.) KGMR2525M-3T20+GMN3 KGM (For automatic lathe) Possible Cutting Diameter and Available Grooving Depth Table Toolholder Description φD (Cutting Dia.) KGM& 0810K-1.5-125 - - - - - - - - - - - - 10 14 16 32 1010-1.5 … - - - - - - - 20 25 32 40 60 ∞ ∞ ∞ ∞ 1212-1.5 … - - - - 25 26 28 32 36 40 60 100 0810K-2-125 - - - - - - - - - - - - 10 14 16 32 1010-2 … - - - - - - - 20 25 32 40 60 1212-2… - - - - 25 26 28 50 ∞ ∞ ∞ ∞ ∞ 1616-2… 32 40 50 60 80 100 ∞ ∞ 1010 -2.5… - - - - - - - 20 25 32 40 60 ∞ ∞ ∞ ∞ 1212-2.5… - - - - 25 26 28 32 36 40 60 100 1616-2.5… 32 40 50 60 80 100 ∞ ∞ ∞ ∞ ∞ ∞ 1616-3… 32 40 50 60 80 100 Available Grooving Depth t (mm) 16 15 14 13 12.5 12 11 10 9 8 7 6 5 4 3 2 1 KGM-T Possible Cutting Diameter and Available Grooving Depth Table (GMN, GM& when using 1-edge insert) Toolholder Description φD (Cutting Dia.) KGM& 2012K-2T17 2020K-2T17 - - - - - - - - 66 80 130 260 2525M-2T17 1616H-3T20 - - - - - 40 54 70 100 180 2012K-3T20 2020K-3T20 2525M-3T20 - - - - - 40 90 130 240 ∞ 2020K-4T20 ∞ ∞ 2525M-4T20 ∞ 2525M-4T25 - - 50 140 240 2525M-5T25 ∞ ∞ ∞ ∞ 3232P-5T25 - - 50 280 600 2525M-6T30 100 300 ∞ ∞ ∞ Available Grooving Depth t (mm) 30 27 25 23 22 20 19 18 17 16 15 14 Under 13 : Std. Item CBN & PCD Inserts are sold in 1 piece boxes. G33