| SAP Material Number | 6723725 |
| ISO Catalog Number | LNGQ120608ELGEKT4 |
| ANSI Catalog Number | LNGQ120608ELGEKT4 |
| Grade | KCK20 |
| [LI] Insert Length | 13.0000 mm |
| [LI] Insert Length | .5118 in |
| [S] Insert Thickness | 6.3500 mm |
| [S] Insert Thickness | .2500 in |
| [W] Insert Width | 13.3850 mm |
| [W] Insert Width | .5270 in |
| [Rε] Corner Radius | 0.8000 mm |
| [Rε] Corner Radius | .0312 in |
| Average Chip Thickness [HM] | 0.0500 mm |
| Average Chip Thickness [HM] | .0020 in |
| Cutting Edges per Insert | 4 |
A new PVD multilayer AlTiN + AlCrN coated carbide with an excellent combination of wear resistance and coating strength. The KCK20 grade is specifically engineered to maximize coating adhesion and edge strength, making this grade ideal in wet interrupted cutting of gray and ductile irons, and can also be used in dry conditions. It can be used in a wide range of applications, from finishing to roughing, to maximize productivity wherever strength and reliability are needed.
| Material Group | Light Machining | General Purpose | Heavy Machining | |||
| – | (Light geometry) | – | (Strong geometry) | |||
| – | wear resistance |  <="" td=""> | toughness | |||
| – | Geometry | Grade | Geometry | Grade | Geometry | Grade |
| P1–P2 | .E..GE | KC522M | .E..GE | KCPM40 | .E..HD | KCPM40 |
| P3–P4 | .E..GE | KC522M | .E..GE | KCPM40 | .E..HD | KCPM40 |
| P5–P6 | .E..GE | KC522M | .E..GE | KCPK30 | .E..HD | KCPK30 |
| M1–M2 | .E..GE | KC522M | .E..GE | KCSM40 | .E..HD | KCPM40 |
| M3 | .E..GE | KC522M | .E..GE | KCSM40 | .E..HD | KCPM40 |
| K1–K2 | .E..GE | KCK15 | .E..GE | KCK15 | .E..HD | KCK15 |
| K3 | .E..GE | KCK20 | .E..GE | KCK20B | .E..HD | KCK20B |
| N1–N2 | – | – | – | – | – | – |
| N3 | – | – | – | – | – | – |
| S1–S2 | .E..GE | KC522M | .E..GE | KCSM40 | – | – |
| S3 | .E..GE | KC522M | .E..GE | KCSM40 | – | – |
| S4 | .E..GE | KC522M | .E..GE | KCSM40 | – | – |
| H1 | – | – | – | – | – | – |
| Insert Geometry | Recommended Starting Feed per Tooth (Fz) in Relation to % of Radial Engagement (ae) | ||||||||||||||
| 10% | 20% | 30% | 40% | 50–100% | |||||||||||
| L | M | H | L | M | H | L | M | H | L | M | H | L | M | H | |
| .E..GE | 0,12 | 0,33 | 0,09 | 0,25 | 0,08 | 0,22 | 0,07 | 0,20 | 0,07 | 0,20 | |||||
| .E..HD | 0,12 | 0,33 | 0,55 | 0,09 | 0,25 | 0,44 | 0,08 | 0,22 | 0,38 | 0,07 | 0,20 | 0,36 | 0,07 | 0,20 | 0,35 |
| L = Light Machining; M = Medium Machining; H = Heavy Machining NOTE: Use "Light Machining" values as starting feed rate. | |||||||||||||||
| Insert Geometry | Recommended Starting Feed per Tooth (Fz) in Relation to % of Radial Engagement (ae) | ||||||||||||||
| 10% | 20% | 30% | 40% | 50–100% | |||||||||||
| L | M | H | L | M | H | L | M | H | L | M | H | L | M | H | |
| .E..GE | .005 | .014 | .004 | .010 | .003 | .009 | .003 | .008 | .003 | .008 | |||||
| .E..HD | .005 | .014 | .024 | .004 | .010 | .018 | .003 | .009 | .015 | .003 | .008 | .014 | .003 | .008 | .014 |
| L = Light Machining; M = Medium Machining; H = Heavy Machining NOTE: Use "Light Machining" values as starting feed rate. | |||||||||||||||
| Grade | KC522M | KCK15 | KCK20B | KCPK30 | KCPM40 | KCSM40 | KC725M | |||||||||||||||
| Chip Thickness hex mm | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | ||||||||
| Material Group | Max | Start | Min | Max | Start | Min | Max | Start | Min | Max | Start | Min | Start | Start | Min | KCSM40 | Start | Min | KCSM40 | Start | Min | |
| P | 1 | 330 | 285 | 270 | – | – | – | – | – | – | 455 | 395 | 370 | 295 | 260 | 245 | 370 | 320 | 300 | 260 | 230 | 215 |
| 2 | 275 | 240 | 200 | – | – | – | – | – | – | 280 | 255 | 230 | 250 | 215 | 180 | 305 | 270 | 220 | 220 | 190 | 160 | |
| 3 | 255 | 215 | 175 | – | – | – | – | – | – | 255 | 230 | 205 | 230 | 195 | 160 | 285 | 240 | 195 | 200 | 170 | 140 | |
| 4 | 225 | 185 | 150 | – | – | – | – | – | – | 190 | 175 | 160 | 205 | 170 | 135 | 250 | 205 | 165 | 180 | 150 | 120 | |
| 5 | 185 | 170 | 150 | – | – | – | – | – | – | 260 | 230 | 210 | 170 | 155 | 135 | 205 | 190 | 165 | 150 | 135 | 120 | |
| 6 | 165 | 125 | 100 | – | – | – | – | – | – | 160 | 135 | 110 | 150 | 115 | 90 | 185 | 140 | 110 | 130 | 100 | 80 | |
| M | 1 | 205 | 180 | 165 | – | – | – | – | – | – | 205 | 185 | 155 | 195 | 170 | 155 | 225 | 200 | 185 | 170 | 150 | 135 |
| 2 | 185 | 160 | 130 | – | – | – | – | – | – | 185 | 160 | 140 | 175 | 150 | 125 | 205 | 180 | 145 | 155 | 130 | 110 | |
| 3 | 140 | 120 | 95 | – | – | – | – | – | – | 145 | 130 | 115 | 130 | 115 | 90 | 155 | 135 | 105 | 115 | 100 | 80 | |
| K | 1 | 230 | 205 | 185 | 420 | 385 | 340 | 360 | 290 | 245 | 295 | 265 | 240 | – | – | – | – | – | – | – | – | – |
| 2 | 180 | 160 | 150 | 335 | 295 | 275 | 280 | 230 | 195 | 235 | 210 | 190 | – | – | – | – | – | – | – | – | – | |
| 3 | 150 | 135 | 120 | 280 | 250 | 230 | 210 | 175 | 140 | 195 | 175 | 160 | – | – | – | – | – | – | – | – | – | |
| N | 1 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| 2 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |
| 3 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |
| S | 1 | 40 | 35 | 25 | – | – | – | – | – | – | – | – | – | 40 | 35 | 30 | 45 | 40 | 30 | 35 | 30 | 25 |
| 2 | 40 | 35 | 25 | – | – | – | – | – | – | – | – | – | 40 | 35 | 30 | 45 | 40 | 30 | 35 | 30 | 25 | |
| 3 | 50 | 40 | 25 | – | – | – | – | – | – | – | – | – | 50 | 40 | 30 | 55 | 45 | 30 | 45 | 35 | 25 | |
| 4 | 50 | 45 | 35 | – | – | – | – | – | – | 50 | 45 | 35 | 55 | 50 | 35 | 60 | 55 | 40 | 50 | 45 | 30 | |
| H | 1 | 120 | 90 | 70 | – | – | – | – | – | – | – | – | – | – | – | – | 135 | 100 | 75 | – | – | – |
| 2 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |
| 3 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |
| Recommended starting speeds are in bold type. As the average chip thickness increases, speed should be decreased. Material groups P, M, K, and H show recommended starting speeds for dry machining. For wet machining, reduce speed by 20%. Material groups N and S show recommended starting speeds for wet machining. Not recommended for dry machining. | ||||||||||||||||||||||
| Grade | KC522M | KCK15 | KCK20B | KCPK30 | KCPM40 | KCSM40 | KC725M | |||||||||||||||
| Chip Thickness hex Inch | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | ||||||||
| Material Group | Max | Start | Min | Max | Start | Min | Max | Start | Min | Max | Start | Min | Max | Start | Min | Max | Start | Min | Max | Start | Min | |
| P | 1 | 1085 | 935 | 885 | – | – | – | – | – | – | 1495 | 1295 | 1215 | 970 | 855 | 805 | 1150 | 1050 | 985 | 855 | 755 | 705 |
| 2 | 900 | 785 | 655 | – | – | – | – | – | – | 920 | 835 | 755 | 820 | 705 | 590 | 985 | 885 | 720 | 720 | 625 | 525 | |
| 3 | 835 | 705 | 575 | – | – | – | – | – | – | 835 | 755 | 675 | 755 | 640 | 525 | 920 | 785 | 640 | 655 | 560 | 460 | |
| 4 | 740 | 605 | 490 | – | – | – | – | – | – | 625 | 575 | 525 | 675 | 560 | 445 | 785 | 675 | 540 | 590 | 490 | 395 | |
| 5 | 605 | 560 | 490 | – | – | – | – | – | – | 855 | 755 | 690 | 560 | 510 | 445 | 655 | 590 | 525 | 490 | 445 | 395 | |
| 6 | 540 | 410 | 330 | – | – | – | – | – | – | 525 | 445 | 360 | 490 | 375 | 295 | 590 | 460 | 330 | 425 | 330 | 260 | |
| M | 1 | 675 | 590 | 540 | – | – | – | – | – | – | 675 | 605 | 510 | 640 | 560 | 510 | 855 | 625 | 375 | 560 | 490 | 445 |
| 2 | 605 | 525 | 425 | – | – | – | – | – | – | 605 | 525 | 460 | 575 | 490 | 410 | 755 | 560 | 345 | 510 | 425 | 360 | |
| 3 | 460 | 395 | 310 | – | – | – | – | – | – | 475 | 425 | 375 | 425 | 375 | 295 | 625 | 460 | 280 | 375 | 330 | 260 | |
| K | 1 | 755 | 675 | 605 | 1380 | 1265 | 1115 | 1180 | 950 | 805 | 970 | 870 | 785 | – | – | – | – | – | – | – | – | – |
| 2 | 590 | 525 | 490 | 1100 | 970 | 900 | 920 | 755 | 640 | 770 | 690 | 625 | – | – | – | – | – | – | – | – | – | |
| 3 | 490 | 445 | 395 | 920 | 820 | 755 | 690 | 575 | 460 | 640 | 575 | 525 | – | – | – | – | – | – | – | – | – | |
| N | 1 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| 2 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |
| 3 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |
| S | 1 | 130 | 115 | 80 | – | – | – | – | – | – | – | – | – | 130 | 115 | 100 | 195 | 150 | 80 | 115 | 100 | 80 |
| 2 | 130 | 115 | 80 | – | – | – | – | – | – | – | – | – | 130 | 115 | 100 | 180 | 130 | 80 | 115 | 100 | 80 | |
| 3 | 165 | 130 | 80 | – | – | – | – | – | – | – | – | – | 165 | 130 | 100 | 215 | 150 | 100 | 150 | 115 | 80 | |
| 4 | 165 | 150 | 115 | – | – | – | – | – | – | 165 | 150 | 115 | 180 | 165 | 115 | 245 | 195 | 130 | 165 | 150 | 100 | |
| H | 1 | 395 | 295 | 230 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Recommended starting speeds are in bold type. As the average chip thickness increases, speed should be decreased. Material groups P, M, K, and H show recommended starting speeds for dry machining. For wet machining, reduce speed by 20%. Material groups N and S show recommended starting speeds for wet machining. Not recommended for dry machining. | ||||||||||||||||||||||
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