SEC-Very Small Diameter Boring Bars CKB Type ■ Inserts ● KBMX Type and KBMX-T Type (For Internal Machining) Dimensions (mm) KBMX Type, KBMX-T Type (For Internal Machining) AC1030U Min. machining Cutting edge DMIN Min. ACZ310 diameter position Offset Nose radius Length Depth of cut machinable diameter Cat. No. DMIN WF3 E3 RE L CDX 10° CDX KBMX R0103-05 D F WF3 0.05 3.8 1.0 4.00 0.20 20.5 3 D F L KBMX R0103-20 0.20 E3 20° 7.0 D F 6.2 KBMX R01506-05 0.05 RE 1.5 4.05 0.25 23.5 6 KBMX R01506-20 D F 0.20 55° .7 12 KBMX R0206-05 D F 0.05 2.0 4.05 0.25 23.5 6 KBMX R0206-20 D F 0.20 KBMX R0311-05 D F 0.05 KBMX Type KBMX-T Type 3.0 4.10 0.30 28.5 11 KBMX R0311-20 D F 0.20 KBMX R0411-05 D F 0.05 4.0 4.30 0.50 28.5 11 KBMX R0411-20 D F 0.20 KBMX R0420-05 D F 0.05 4.0 4.30 0.50 37.5 20 KBMX R0420-20 D F 0.20 KBMX R0511-05 D F 0.05 5.0 4.50 0.70 28.5 11 KBMX R0511-20 D F 0.20 Reduces chip curl and evacuates Type that evacuates chips towards KBMX R0520-05 D F 0.05 chips. the back. Low cutting force 5.0 4.50 0.70 37.5 20 prevents chatter. D F E KBMX R0520-20 Min. machining Cutting edge 0.20 ACZ150 diameter position Offset Nose radius Length Depth of cut Cat. No. Boring DMIN WF3 E3 RE L CDX Bars KBMX R0103-05T D 0.05 1.0 4.00 0.20 20.5 3 KBMX R0103-20T D 0.20 KBMX R01506-05T D 0.05 KBMZ Type (For Internal Turning) 1.5 4.05 0.25 23.5 6 KBMX R01506-20T D 0.20 DMIN Min. KBMX R0206-05T D 0.05 machinable diameter 2.0 4.05 0.25 23.5 6 KBMX R0206-20T D 0.20 5° CDX D WF3 KBMX R0311-05T 3.8 0.05 3.0 4.10 0.30 28.5 11 RE KBMX R0311-20T D 0.20 2 L 15° E3 7.0 D 6.2 KBMX R0411-05T 0.05 4.0 4.30 0.50 28.5 11 KBMX R0411-20T D 0.20 CDX2 12 .7 55° KBMX R0511-05T D 0.05 Magnified diagram of cutting edge Magnified diagram of cutting edge 5.0 4.50 0.70 28.5 11 φ4.0 mm)φ4.0 mm) KBMX R0511-20T D 0.20 (forminimum (for minimummachinable machinable diameter diameter (for minimum machinable e 0.3 diameter φ5.0 mm) R0.25 R0.25 ● KBMZ Type (For Internal Turning) Dimensions (mm) I N AC1030U Min. machining Cutting edge ACZ310 diameter position Offset Nose radius Length Depth of cut Cat. No. DMIN WF3 E3 RE L CDX CDX2 KBMG Type (For Internal Grooving) KBMZ R0411-05 D F 0.05 DMIN Min. machinable diameter 4.0 5.10 1.3 28.5 9 11 CDX KBMZ R0411-20 D F 0.20 WF3 3.8 KBMZ R0511-05 D F 0.05 5.0 5.10 1.3 28.5 9 11 E3 L KBMZ R0511-20 D F 0.20 CW Cutting edge Enlarged view of cutting edge 7.0 6.2 ● KBMG Type (For Internal Grooving) Dimensions (mm) 55° e R0.25 .7 12 AC1030U Min. machining Cutting edge CW ACZ310 RE RE diameter position Offset Width of cut Nose radius Length Depth of cut Cat. No. DMIN WF3 E3 CW RE L CDX KBMG R0411-05 D F 1.0 0.05 KBMF Type (For Face Grooving) 4.0 4.90 1.1 28.5 11 KBMG R0411-10 D F 2.0 0.10 KBMG R0511-05 D F 1.0 0.05 DMIN Min. machinable diameter 5.0 5.10 1.3 28.5 11 RE 4.3 KBMG R0511-10 D F 2.0 0.10 WF3 3.8 CW ● KBMF Type (For Face Grooving) E3 Dimensions (mm) L RE 5.3 Min. machining Cutting edge Maximum ACZ150 diameter position Offset Width of cut Nose radius Length groove 7.0 6.2 Cat. No. depth DMIN WF3 E3 CW RE L (mm) 55° KBMF R0615-05 D 6.0 4.0 0.2 1.5 0.05 21.8 4.0 12 .7 KBMF R0620-05 D 6.0 4.0 0.2 2.0 0.05 21.8 4.0 KBMF R0630-05 D 6.0 4.0 0.2 3.0 0.05 21.8 4.0 KBMX Type (SUMIDIA / For Internal Machining) DMIN Min. ● KBMX Type (SUMIDIA / For Internal Machining) Dimensions (mm) machinable diameter CDX Min. machining Cutting edge 15° DA2200 position Offset Nose radius Length Depth of cut WF3 3.8 diameter Cat. No. DMIN WF3 E3 RE L CDX E3 L 15° KBMX R0311-10 D 3.0 4.1 0.3 0.1 28.5 11 7.0 6.2 RE KBMX R0411-10 D 4.0 4.3 0.5 0.1 28.5 11 55° KBMX R0511-10 D 5.0 4.5 0.7 0.1 28.5 11 12 .7 ● mark: Standard stocked item (expanded product) F mark: To be replaced by new item (Please confirm stock availability) E74