Solid Carbide Thread Mills
G1/4–3/8 BSP 19 TPI Internal & External Fast Thread Mill – Carmex FMT 1010 G16 19 W MT8
SKU: FMT1010G1619WMT8
M10, M14 x 1.5 Metric Internal Fast Thread Mill – Carmex FMT 1008 G17 1.5 ISO MT8
SKU: FMT1008G171.5ISOMT8
3/8 x 16 TPI UN Internal Fast Thread Mill – Carmex FMT 10074 F16 16 UN MT8
SKU: FMT10074F1616UNMT8
5/16 x 18 TPI UN Internal Fast Thread Mill – Carmex FMT 1006 F14 18 UN MT8
SKU: FMT1006F1418UNMT8
5/16 x 24 TPI UN Internal Fast Thread Mill – Carmex FMT 10066 G14 24 UN MT8
SKU: FMT10066G1424UNMT8
M8, M10 x 1.25 Metric Internal Fast Thread Mill – Carmex FMT 10064 G14 1.25 ISO MT8
SKU: FMT10064G141.25ISOMT8
G1/8 BSP 28 TPI Internal & External Fast Thread Mill – Carmex FMT 08078 H14 28 W MT8
SKU: FMT08078H1428WMT8
M6 x 0.75 Metric Internal Fast Thread Mill – Carmex FMT 0805 F12 0.75 ISO MT8
SKU: FMT0805F120.75ISOMT8
1/4 x 28 TPI UN Internal Fast Thread Mill – Carmex FMT 08052 F11 28 UN MT8
SKU: FMT08052F1128UNMT8
M6, M8 x 1 Metric Internal Fast Thread Mill – Carmex FMT 08048 F10 1.0 ISO MT8
SKU: FMT08048F101.0ISOMT8
1/4 x 20 TPI UN Internal Fast Thread Mill – Carmex FMT 08048 E12 20 UN MT8
SKU: FMT08048E1220UNMT8
M5 x 0.8 Metric Internal Fast Thread Mill – Carmex FMT 0604 E9 0.8 ISO MT8
SKU: FMT0604E90.8ISOMT8
M4, M5 x 0.5 Metric Internal Fast Thread Mill – Carmex FMT 06033 E8 0.5 ISO MT8
SKU: FMT06033E80.5ISOMT8
M4 x 0.7 Metric Internal Fast Thread Mill – Carmex FMT 06032 E7 0.7 ISO MT8
SKU: FMT06032E70.7ISOMT8
M3, M3.5 x 0.5 Metric Internal Fast Thread Mill – Carmex FMT 06024 D6 0.5 ISO MT8
SKU: FMT06024D60.5ISOMT8
1 mm Pitch MJ External Thread Mill Ø12mm – Carmex EMT 1212 E24 1.0 MJ MT7
SKU: EMT1212E241.0MJMT7
20 TPI UN External Thread Mill Ø12mm – Carmex EMT 1212 E21 20 UN MT7
SKU: EMT1212E2120UNMT7
2 mm Pitch MJ External Thread Mill Ø12mm – Carmex EMT 1212 D27 2.0 MJ MT7
SKU: EMT1212D272.0MJMT7
16 TPI UNJ External Thread Mill Ø12mm – Carmex EMT 1212 D26 16 UNJ MT7
SKU: EMT1212D2616UNJMT7
14 TPI UNJ External Thread Mill Ø12mm – Carmex EMT 1212 D26 14 UNJ MT7
SKU: EMT1212D2614UNJMT7
2 mm Pitch Metric External Thread Mill Ø12mm – Carmex EMT 1212 D21 2.0 ISO MT7
SKU: EMT1212D212.0ISOMT7
16 TPI UN External Thread Mill Ø12mm – Carmex EMT 1212 D21 16 UN MT7
SKU: EMT1212D2116UNMT7
18 TPI UN External Thread Mill Ø12mm – Carmex EMT 1212 D20 18 UN MT7
SKU: EMT1212D2018UNMT7
1.75 mm Pitch Metric External Thread Mill Ø12mm – Carmex EMT 1212 D20 1.75 ISO MT7
SKU: EMT1212D201.75ISOMT7
1.5 mm Pitch Metric External Thread Mill Ø12mm – Carmex EMT 1212 D20 1.5 ISO MT7
SKU: EMT1212D201.5ISOMT7
1.5 mm Pitch MJ External Thread Mill Ø10mm – Carmex EMT 1010 D21 1.5 MJ MT7
SKU: EMT1010D211.5MJMT7
24 TPI UNJ External Thread Mill Ø10mm – Carmex EMT 1010 D20 24 UNJ MT7
SKU: EMT1010D2024UNJMT7
1 mm Pitch MJ External Thread Mill Ø10mm – Carmex EMT 1010 D20 1.0 MJ MT7
SKU: EMT1010D201.0MJMT7
1.25 mm Pitch MJ External Thread Mill Ø10mm – Carmex EMT 1010 D19 1.25 MJ MT7
SKU: EMT1010D191.25MJMT7
24 TPI UN External Thread Mill Ø10mm – Carmex EMT 1010 D16 24 UN MT7
SKU: EMT1010D1624UNMT7
1.25 mm Pitch Metric External Thread Mill Ø10mm – Carmex EMT 1010 D16 1.25 ISO MT7
SKU: EMT1010D161.25ISOMT7
2 mm Pitch MJ External Thread Mill Ø10mm – Carmex EMT 1010 C21 2.0 MJ MT7
SKU: EMT1010C212.0MJMT7
2 mm Pitch Metric External Thread Mill Ø10mm – Carmex EMT 1010 C17 2.0 ISO MT7
SKU: EMT1010C172.0ISOMT7
28 TPI UNJ External Thread Mill Ø8mm – Carmex EMT 0808 D17 28 UNJ MT7
SKU: EMT0808D1728UNJMT7
32 TPI UNJ External Thread Mill Ø6mm – Carmex EMT 0606 C13 32 UNJ MT7
SKU: EMT0606C1332UNJMT7
M16, M17–M23 x 2 Metric Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 12118 D36 2.0 ISO MT11
SKU: DMTH12118D362.0ISOMT11
5/8 x 11 TPI UN Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 12114 C37 11 UN MT11
SKU: DMTH12114C3711UNMT11
M12 x 1.75 Metric Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 1009 D28 1.75 ISO MT11
SKU: DMTH1009D281.75ISOMT11
1/2 x 13 TPI UN Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 10092 C30 13 UN MT11
SKU: DMTH10092C3013UNMT11
M10, M13–M15 x 1.5 Metric Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 08078 D23 1.5 ISO MT11
SKU: DMTH08078D231.5ISOMT11
5/16–7/16 x 18 TPI UN Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 0806 D19 18 UN MT11
SKU: DMTH0806D1918UNMT11
3/8–1/2 x 16 TPI UN Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 08067 C22 16 UN MT11
SKU: DMTH08067C2216UNMT11
5/16–1/2 x 24 TPI UN Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 08065 D18 24 UN MT11
SKU: DMTH08065D1824UNMT11
M8, M9, M10, M12 x 1.25 Metric Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 08061 D19 1.25 ISO MT11
SKU: DMTH08061D191.25ISOMT11
1/4–3/8 x 28 TPI UN Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 0805 C14 28 UN MT11
SKU: DMTH0805C1428UNMT11
M6, M7, M8, M9 x 1 Metric Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 08047 C14 1.0 ISO MT11
SKU: DMTH08047C141.0ISOMT11
M5 x 0.8 Metric Internal 3-in-1 Hardcut Drill Thread Mill 2.5xD – Carmex DMTH 0604 C14 0.8 ISO MT11
SKU: DMTH0604C140.8ISOMT11
M4 x 0.7 Metric Internal 3-in-1 Hardcut Drill Thread Mill 2.5xD – Carmex DMTH 06032 C11 0.7 ISO MT11
SKU: DMTH06032C110.7ISOMT11
No. 6 x 32 TPI UN Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 06026 C8 32 UN MT11
SKU: DMTH06026C832UNMT11
No. 4, No. 5, No. 6 x 40 TPI UN Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 06021 C7 40 UN MT11
SKU: DMTH06021C740UNMT11
Solid carbide thread mills for CNC machining in steel, stainless, aluminium and exotic alloys. The range covers ISO metric, UNF, UNC, NPT and specialist thread forms — single-flute for small-diameter and fine-pitch threads, multi-flute for faster cycle times in larger thread sizes. UK stock, same-day dispatch before 4.30pm.
Thread mills produce threads by helical interpolation on a machining centre. One tool covers multiple thread sizes by adjusting the interpolation radius in the program — no tool change needed for size variation. Lower cutting forces than tapping, no breakage risk in blind holes, and the thread size can be corrected by adjusting the toolpath offset without changing tooling.
Sizes in stock cover M2 to M36 and inch equivalents. Full-profile thread mills cut the complete thread form in a single helical pass. Multi-form variants make multiple passes to full thread depth — suited to deep thread lengths or tougher materials where tool load needs to be managed across passes.
