• OSG 81243K EX Long End Mill (EXML)
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OSG 81243K EX Long End Mill (EXML)

OSG 81243K EX Long End Mill (EXML)

OSG EX Long End Mill (EXML) 81243K is a long-reach solid carbide milling tool designed for extended-depth cutting operations, sourced direct from Korea.

Key features

  • Long end mills like this are commonly used in mold and die machining, aerospace component work, and any application requiring tool reach into deep cavities or tall workpiece features where standard-length tools cannot access
311-9309 MPN: 81243K | 4F-15-100-155MM(81243K) | Spec: 15 | Flute Length: 100 | Overall Length: 155 | Product Name: 4 Flute | Shank Diameter: 16
313-7509 MPN: 81203K | 4F-3-30-70MM(81203K) | Spec: 3 | Flute Length: 30 | Overall Length: 70 | Product Name: 4 Flute | Shank Diameter: 6
313-7527 MPN: 81211K | 4F-5-40-80MM(81211K) | Spec: 5 | Flute Length: 40 | Overall Length: 80 | Product Name: 4 Flutes | Shank d: 8
313-7536 MPN: 81215K | 4F-6-40-80MM(81215K) | Spec: 6 | Flute Length: 40 | Overall Length: 80 | Product Name: 4 Flute | Shank Diameter: 8
313-7545 MPN: 81219K | 4F-7-45-90MM(81219K) | Spec: 7 | Flute Length: 45 | Overall Length: 90 | Product Name: 4-Flute | Shank Diameter: 10
313-7563 MPN: 81227K | 4F-9-55-100MM(81227K) | Spec: 9 | Flute Length: 55 | Overall Length: 100 | Product Name: 4 Flute | Shank Diameter: 10
313-7572 MPN: 81231K | 4F-10-80-125MM(81231K) | Spec: 10 | Flute Length: 80 | Overall Length: 125 | Product Name: 4-Flute | Shank Diameter: 10
313-7581 MPN: 81235K | 4F-12-100-150MM(81235K) | Spec: 12 | Flute Length: 100 | Overall Length: 150 | Product Name: 4 Flute | Shank d: 12
313-7590 MPN: 81239K | 4F-14-100-155MM(81239K) | Spec: 14 | Flute Length: 100 | Overall Length: 155 | Product Name: 4-Flute | Shank Diameter: 16
313-7606 MPN: 641616K | 4F-16-100-160MM(641616K) | Spec: 16 | Flute Length: 100 | Overall Length: 160 | Product Name: 4 Flute | Shank Diameter: 16
313-7615 MPN: 641818K | 4F-18-100-180MM(641818K) | Spec: 18 | Flute Length: 100 | Overall Length: 180 | Product Name: 4 Flute | Shank d: 16
313-7624 MPN: 642018K | 4F-20-100-180MM(642018K) | Spec: 20 | Flute Length: 100 | Overall Length: 180 | Product Name: 4-Flute | Shank Diameter: 20
313-7679 MPN: 642425K | 4F-24-150-250MM(642425K)
313-7721 MPN: 643020K | 4F-30-120-200MM(643020K) | Spec: 30 | Flute Length: 120 | Overall Length: 200 | Product Name: 4 Flute | Shank Diameter: 25
313-7819 MPN: 644530K | 4F-45-200-300MM(644530K) | Spec: 45 | Flute Length: 200 | Overall Length: 300 | Product Name: 4-Flute | Shank Diameter: 42
End MillsOSG
15 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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OSG 81243K EX Long End Mill (EXML)

Brand OSG·End Mills

Available part numbers (15)

311-9309, 313-7509, 313-7527, 313-7536, 313-7545, 313-7563, 313-7572, 313-7581, 313-7590, 313-7606 + 5 more — see full table ↓

How to order

Send the OSG part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
311-9309MPN: 81243K | 4F-15-100-155MM(81243K) | Spec: 15 | Flute Length: 100 | Overall Length: 155 | Product Name: 4 Flute | Shank Diameter: 16
313-7509MPN: 81203K | 4F-3-30-70MM(81203K) | Spec: 3 | Flute Length: 30 | Overall Length: 70 | Product Name: 4 Flute | Shank Diameter: 6
313-7527MPN: 81211K | 4F-5-40-80MM(81211K) | Spec: 5 | Flute Length: 40 | Overall Length: 80 | Product Name: 4 Flutes | Shank d: 8
313-7536MPN: 81215K | 4F-6-40-80MM(81215K) | Spec: 6 | Flute Length: 40 | Overall Length: 80 | Product Name: 4 Flute | Shank Diameter: 8
313-7545MPN: 81219K | 4F-7-45-90MM(81219K) | Spec: 7 | Flute Length: 45 | Overall Length: 90 | Product Name: 4-Flute | Shank Diameter: 10
313-7563MPN: 81227K | 4F-9-55-100MM(81227K) | Spec: 9 | Flute Length: 55 | Overall Length: 100 | Product Name: 4 Flute | Shank Diameter: 10
313-7572MPN: 81231K | 4F-10-80-125MM(81231K) | Spec: 10 | Flute Length: 80 | Overall Length: 125 | Product Name: 4-Flute | Shank Diameter: 10
313-7581MPN: 81235K | 4F-12-100-150MM(81235K) | Spec: 12 | Flute Length: 100 | Overall Length: 150 | Product Name: 4 Flute | Shank d: 12
313-7590MPN: 81239K | 4F-14-100-155MM(81239K) | Spec: 14 | Flute Length: 100 | Overall Length: 155 | Product Name: 4-Flute | Shank Diameter: 16
313-7606MPN: 641616K | 4F-16-100-160MM(641616K) | Spec: 16 | Flute Length: 100 | Overall Length: 160 | Product Name: 4 Flute | Shank Diameter: 16
313-7615MPN: 641818K | 4F-18-100-180MM(641818K) | Spec: 18 | Flute Length: 100 | Overall Length: 180 | Product Name: 4 Flute | Shank d: 16
313-7624MPN: 642018K | 4F-20-100-180MM(642018K) | Spec: 20 | Flute Length: 100 | Overall Length: 180 | Product Name: 4-Flute | Shank Diameter: 20
313-7679MPN: 642425K | 4F-24-150-250MM(642425K)
313-7721MPN: 643020K | 4F-30-120-200MM(643020K) | Spec: 30 | Flute Length: 120 | Overall Length: 200 | Product Name: 4 Flute | Shank Diameter: 25
313-7819MPN: 644530K | 4F-45-200-300MM(644530K) | Spec: 45 | Flute Length: 200 | Overall Length: 300 | Product Name: 4-Flute | Shank Diameter: 42

Need a different model, or a part not listed here? Send us your parts list →

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