Solid Carbide Thread Mills
M14, M17 x 2 Metric Internal Thread Mill – Carmex MT 1010 C27 2.0 ISO MT7
SKU: MT1010C272.0ISOMT7
9/16 x 12 TPI UN Internal Thread Mill – Carmex MT 1010 C26 12 UN MT7
SKU: MT1010C2612UNMT7
7/16 x 14 TPI UN Internal Thread Mill – Carmex MT 10085 C28 14 UN MT7
SKU: MT10085C2814UNMT7
1/2 x 13 TPI UN Internal Thread Mill – Carmex MT 0808 C22 13 UN MT7
SKU: MT0808C2213UNMT7
1/4–3/8 NPTF 18 TPI Internal & External Thread Mill – Carmex MT 0808 C14 18 NPTF MT7
SKU: MT0808C1418NPTFMT7
7/16–1/2 x 28 TPI UN Internal Thread Mill – Carmex MT 0606 C14 28 UN MT7
SKU: MT0606C1428UNMT7
1/4 x 28 TPI UN Internal Thread Mill – Carmex MT 0604 C11 28 UN MT7
SKU: MT0604C1128UNMT7
No. 5 x 40 TPI UN Internal Thread Mill – Carmex MT 06025 C6 40 UN MT7
SKU: MT06025C640UNMT7
5/16, 3/8 x 24 TPI UN Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 08066 F24 24 UN MT3
SKU: FSH08066F2424UNMT3
5/16, 3/8 x 24 TPI UN Internal Fast Hardcut Thread Mill 2xD – Carmex FSH 08066 F16 24 UN MT3
SKU: FSH08066F1624UNMT3
M8, M10, M12 x 1.25 Metric Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 08064 G25 1.25 ISO MT3
SKU: FSH08064G251.25ISOMT3
M8, M10, M12 x 1.25 Metric Internal Fast Hardcut Thread Mill 2xD – Carmex FSH 08064 G17 1.25 ISO MT3
SKU: FSH08064G171.25ISOMT3
1/4 x 28 TPI UN Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 06052 F20 28 UN MT3
SKU: FSH06052F2028UNMT3
1/4 x 28 TPI UN Internal Fast Hardcut Thread Mill 2xD – Carmex FSH 06052 F13 28 UN MT3
SKU: FSH06052F1328UNMT3
M5 x 0.8 Metric Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 0604 E15 0.8 ISO MT3
SKU: FSH0604E150.8ISOMT3
M5 x 0.8 Metric Internal Fast Hardcut Thread Mill 2xD – Carmex FSH 0604 E10 0.8 ISO MT3
SKU: FSH0604E100.8ISOMT3
M6, M8 x 1 Metric Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 06048 F19 1.0 ISO MT3
SKU: FSH06048F191.0ISOMT3
M6, M8 x 1 Metric Internal Fast Hardcut Thread Mill 2xD – Carmex FSH 06048 F13 1.0 ISO MT3
SKU: FSH06048F131.0ISOMT3
1/4 x 20 TPI UN Internal Fast Hardcut Thread Mill 2xD – Carmex FSH 06048 E14 20 UN MT3
SKU: FSH06048E1420UNMT3
No. 10 x 32 TPI UN Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 06038 E15 32 UN MT3
SKU: FSH06038E1532UNMT3
No. 10 x 32 TPI UN Internal Fast Hardcut Thread Mill 2xD – Carmex FSH 06038 E10 32 UN MT3
SKU: FSH06038E1032UNMT3
M4 x 0.7 Metric Internal Fast Hardcut Thread Mill 2xD – Carmex FSH 06032 E8 0.7 ISO MT3
SKU: FSH06032E80.7ISOMT3
M4 x 0.7 Metric Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 06032 E12 0.7 ISO MT3
SKU: FSH06032E120.7ISOMT3
No. 8 x 32 TPI UN Internal Fast Hardcut Thread Mill 2xD – Carmex FSH 06032 D9 32 UN MT3
SKU: FSH06032D932UNMT3
No. 8 x 32 TPI UN Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 06032 D13 32 UN MT3
SKU: FSH06032D1332UNMT3
M2.5 x 0.45 Metric Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 0602 E8 0.45 ISO MT3
SKU: FSH0602E80.45ISOMT3
M2.5 x 0.45 Metric Internal Fast Hardcut Thread Mill 2xD – Carmex FSH 0602 E5 0.45 ISO MT3
SKU: FSH0602E50.45ISOMT3
No. 6 x 32 TPI UN Internal Fast Hardcut Thread Mill 2xD – Carmex FSH 06025 D7 32 UN MT3
SKU: FSH06025D732UNMT3
No. 6 x 32 TPI UN Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 06025 D11 32 UN MT3
SKU: FSH06025D1132UNMT3
M3, M4, M5 x 0.5 Metric Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 06024 E9 0.5 ISO MT3
SKU: FSH06024E90.5ISOMT3
M3, M4, M5 x 0.5 Metric Internal Fast Hardcut Thread Mill 2xD – Carmex FSH 06024 E6 0.5 ISO MT3
SKU: FSH06024E60.5ISOMT3
No. 5, No. 6 x 40 TPI UN Internal Fast Hardcut Thread Mill 2xD – Carmex FSH 06024 D7 40 UN MT3
SKU: FSH06024D740UNMT3
No. 5, No. 6 x 40 TPI UN Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 06024 D10 40 UN MT3
SKU: FSH06024D1040UNMT3
No. 4 x 40 TPI UN Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 06021 D9 40 UN MT3
SKU: FSH06021D940UNMT3
No. 4 x 40 TPI UN Internal Fast Hardcut Thread Mill 2xD – Carmex FSH 06021 D6 40 UN MT3
SKU: FSH06021D640UNMT3
3/4 x 16 TPI UN Internal Fast Thread Mill – Carmex FMT 20167 H34 16 UN MT8
SKU: FMT20167H3416UNMT8
G1 BSP 11 TPI Internal & External Fast Thread Mill – Carmex FMT 1616 H38 11 W MT8
SKU: FMT1616H3811WMT8
5/8 x 11 TPI UN Internal Fast Thread Mill – Carmex FMT 1612 F33 11 UN MT8
SKU: FMT1612F3311UNMT8
9/16, 5/8, No. 1, 1/16, No. 1, 1/8 x 18 TPI UN Internal Fast Thread Mill – Carmex FMT 16125 H26 18 UN MT8
SKU: FMT16125H2618UNMT8
9/16, No. 1 x 12 TPI UN Internal Fast Thread Mill – Carmex FMT 16116 F26 12 UN MT8
SKU: FMT16116F2612UNMT8
G1/2–7/8 BSP 14 TPI Internal & External Fast Thread Mill – Carmex FMT 1414 H26 14 W MT8
SKU: FMT1414H2614WMT8
M14, M16, M18 x 2 Metric Internal Fast Thread Mill – Carmex FMT 1411 G29 2.0 ISO MT8
SKU: FMT1411G292.0ISOMT8
1/2, 3/4, 7/8, No. 1 x 20 TPI UN Internal Fast Thread Mill – Carmex FMT 14111 H22 20 UN MT8
SKU: FMT14111H2220UNMT8
7/16–1/2 x 28 TPI UN Internal Fast Thread Mill – Carmex FMT 12098 H19 28 UN MT8
SKU: FMT12098H1928UNMT8
1/2 x 13 TPI UN Internal Fast Thread Mill – Carmex FMT 12098 F24 13 UN MT8
SKU: FMT12098F2413UNMT8
M12 x 1.75 Metric Internal Fast Thread Mill – Carmex FMT 12095 G20 1.75 ISO MT8
SKU: FMT12095G201.75ISOMT8
7/16 x 20 TPI UN Internal Fast Thread Mill – Carmex FMT 12092 H21 20 UN MT8
SKU: FMT12092H2120UNMT8
M10, M12 x 1 Metric Internal Fast Thread Mill – Carmex FMT 12087 G20 1.0 ISO MT8
SKU: FMT12087G201.0ISOMT8
7/16, 7/8 x 14 TPI UN Internal Fast Thread Mill – Carmex FMT 12085 F20 14 UN MT8
SKU: FMT12085F2014UNMT8
3/8, 9/16, 5/8, 11/16 x 24 TPI UN Internal Fast Thread Mill – Carmex FMT 12082 G17 24 UN MT8
SKU: FMT12082G1724UNMT8
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.
