Cut-Off Inserts GMM / GMN / GM& Classification of usage P Carbon steel / Alloy steel ○ P Q P Q :Continuous-Light Interruption / 1st Choice M Stainless Steel P Q P Q Applicable Toolholders :Continuous-Light Interruption / 2nd Choice K Cast Iron Q Ref. to Page for ● :Continuous / 1st Choice ○ :Continuous / 2nd Choice N Non-ferrous Metals Q Dimension (mm) Angle Cermet CVD Coated PVD Coated Carbide Carbide Carbide Insert Description TN90 CR9025 PR915 PR930 PR1115 KW10 W rε L H M θ Handed Insert shows Right-hand GMM 1520-MT 1.5 0 1.2 ● ● H22 W±0.05 2゜ rε 0.05 ● M 0 ● ● 2゜ 2020-MT 2.0 0.05 1.5 ● ● L rε 20 4.3 - H22 2520-MT 2.5 0 1.9 ● ● H 0.05 ● ● H23 Sharp-Cutting 3020-MT 3.0 0 2.3 ● ● 2-edge 0.05 ● ● GMM 1520-NB 1.5 0 1.2 ● ● H22 W±0.05 2゜ rε 0.05 M 0 ● ● 2゜ 2020-NB 2.0 0.05 1.5 ● L rε 20 4.3 - 2520-NB 2.5 0 1.9 ● ● H 0.05 ● Sharp-Cutting 0 ● ● 2-edge 3020-NB 3.0 0.05 2.3 ● Without Chipbreaker H W±0.05 2゜ M GMM 2020-TK 2.0 0.20 1.5 ● ● ● 2゜ H rε 2520-TK 2.5 0.20 20 4.3 1.9 - ● ● ● ● Neutral Stability Oriented H 3020-TK 3.0 0.25 2.3 ● ● ● ● 2-edge W±0.05 2° M GMM 2020-TMR 2.0 0.20 1.5 ● Cut-off 2° L rε 2520-TMR 2.5 0.20 20 4.3 1.9 - ● H22 High Feed Rate H 3020-TMR 3.0 0.25 2.3 ● H23 2-edge M 2゜ W±0.05 GMN 2-TK 2.0 0.20 1.5 ● ● ● 2゜ 3-TK 3.0 0.25 20 4.3 2.3 - ● ● ● ● rε L Stability Oriented H 4-TK 4.0 0.30 3.3 ● ● ● ● 1-edge Shows GMN2.2 GMN 2.2 2.2 0.17 1.8 ● ● ● ● Shows GMN2.2 M 2゜ W±0.05 3 3.0 0.20 2.3 ● ● ● ● 2゜ rε 4 4.0 0.25 20 4.3 3.3 - ● ● ● ● L H 5 5.0 0.80 4.2 ● ● ● Sharp-Cutting 6 6.0 0.80 5.2 ● ● ● 1-edge R L R L R L R L R L R L GMM 1520&-MT-15D 1.5 0 1.2 ● ● ● ● H22 2゜ θ 0.05 ● W±0.05 M 2020&-MT-15D 2.0 0 1.5 ● ● ● ● 2゜ 0.05 20 4.3 15° ● ● ● L rε 0 ● ● ● ● 2520&-MT-15D 2.5 0.05 1.9 ● □ ● H Sharp-Cutting 3020&-MT-15D 3.0 0 2.3 ● ● ● ● 2-edge 0.05 ● ● ● W±0.05 2゜ θ GMM 2020R-TK-8D 2.0 0.20 1.5 ● ● ● M 2゜ L rε 2520R-TK-8D 2.5 0.20 20 4.3 1.9 8° ● ● ● ● Stability Oriented H 3020R-TK-8D 3.0 0.25 2.3 ● ● ● ● 2-edge Lead Angle θ GMM 2020R-TMR-6D 2.0 0.20 1.5 ● W±0.05 2° M 2° L rε 2520R-TMR-6D 2.5 0.20 20 4.3 1.9 6° ● H22 High Feed Rate H 3020R-TMR-6D 3.0 0.25 2.3 ● H23 2-edge M θ 2゜ W±0.05 GMR 2-TK-8D 2.0 0.20 1.5 □ ● ● 2゜ 3-TK-8D 3.0 0.25 20 4.3 2.3 8° □ ● ● ● L rε Stability Oriented H 4-TK-8D 4.0 0.30 3.3 □ ● ● ● 1-edge Shows Shows GMR2.2-8D / 15D GM& 2.2-8D 2.2 0.17 1.8 8° ● ● ● ● ● GMR2.2-8D / 15D θ 2゜ M W±0.05 2.2-15D 2.2 0.00 1.8 15° ● ● ● ● 2゜ rε 3-4D 3.0 0.20 20 4.3 2.3 4° ● ● ● ● ● ● L Sharp-Cutting H 4-4D 4.0 0.25 3.3 4° ● ● ● 1-edge N : Std. Item H20 Inserts are sold in 10 piece boxes.