Solid Carbide Thread Mills
1/2–9/16 BSW 16 TPI Internal & External Coolant Bore Thread Mill – Carmex MTB 1010 E26 16 W MT7
SKU: MTB1010E2616WMT7
3/8 BSW 16 TPI Internal & External Coolant Bore Thread Mill – Carmex MTB 0807 D19 16 W MT7
SKU: MTB0807D1916WMT7
M4 x 0.7 Metric Internal Coolant Bore Thread Mill – Carmex MTB 06031 C7 0.7 ISO MT7
SKU: MTB06031C70.7ISOMT7
1–1, 1/2 x 12 TPI UN Internal Thread Mill – Carmex MT 1616 E41 12 UN MT7
SKU: MT1616E4112UNMT7
1/2–3/4 NPT 14 TPI Internal & External Thread Mill – Carmex MT 1212 D20 14 NPT MT7
SKU: MT1212D2014NPTMT7
M14, M17 x 2 Metric Internal Thread Mill – Carmex MT 1010 C39 2.0 ISO MT7
SKU: MT1010C392.0ISOMT7
1/2 x 13 TPI UN Internal Thread Mill – Carmex MT 10098 D32 13 UN MT7
SKU: MT10098D3213UNMT7
M12 x 1.75 Metric Internal Thread Mill – Carmex MT 0808 C28 1.75 ISO MT7
SKU: MT0808C281.75ISOMT7
Rc1/4–3/8 BSPT 19 TPI Internal & External Thread Mill – Carmex MT 0808 C14 19 BSPT MT7
SKU: MT0808C1419BSPTMT7
3/8, 9/16–5/8 x 24 TPI UN Internal Thread Mill – Carmex MT 0807 C21 24 UN MT7
SKU: MT0807C2124UNMT7
M10, M12 x 1.5 Metric Internal Thread Mill – Carmex MT 0807 C17 1.5 ISO MT7
SKU: MT0807C171.5ISOMT7
G1/16–G1/8 BSP 28 TPI Internal & External Thread Mill – Carmex MT 0606 C9 28 W MT7
SKU: MT0606C928WMT7
M9 x 1 Metric Internal Thread Mill – Carmex MT 0606 C12 1.0 ISO MT7
SKU: MT0606C121.0ISOMT7
M6, M8 x 0.5 Metric Internal Thread Mill – Carmex MT 06053 D10 0.5 ISO MT7
SKU: MT06053D100.5ISOMT7
1/4 x 20 TPI UN Internal Thread Mill – Carmex MT 06045 C12 20 UN MT7
SKU: MT06045C1220UNMT7
M6, M8 x 0.75 Metric Internal Thread Mill – Carmex MT 06045 C10 0.75 ISO MT7
SKU: MT06045C100.75ISOMT7
18 TPI UNJ External Thread Mill Ø12mm – Carmex EMT 1212 D26 18 UNJ MT7
SKU: EMT1212D2618UNJMT7
1 mm Pitch Metric External Thread Mill Ø10mm – Carmex EMT 1010 D16 1.0 ISO MT7
SKU: EMT1010D161.0ISOMT7
M5 x 0.8 Metric Internal 3-in-1 Drill Thread Mill 2.5xD – Carmex DMT 0604 C14 0.8 ISO-D MT7
SKU: DMT0604C140.8ISO-DMT7
5/8 x 11 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 12114 C28 11 UN MT7
SKU: MTZ12114C2811UNMT7
9/16–5/8, No. 1, 1/8–1, 5/8 x 18 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 12113 D26 18 UN MT7
SKU: MTZ12113D2618UNMT7
1/4–3/8 NPT 18 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 1010 D16 18 NPT MT7
SKU: MTZ1010D1618NPTMT7
1/2 x 13 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 10098 D32 13 UN MT7
SKU: MTZ10098D3213UNMT7
M10 x 1 Metric Internal Through-Flute Coolant Thread Mill – Carmex MTZ 0808 D16 1.0 ISO MT7
SKU: MTZ0808D161.0ISOMT7
1/8 NPTF 27 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 08076 C10 27 NPTF MT7
SKU: MTZ08076C1027NPTFMT7
5/16 x 18 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 0606 C20 18 UN MT7
SKU: MTZ0606C2018UNMT7
M8, M10 x 1.25 Metric Internal Through-Flute Coolant Thread Mill – Carmex MTZ 0606 C14 1.25 ISO MT7
SKU: MTZ0606C141.25ISOMT7
G1/4–3/8 BSP 19 TPI Internal & External Mini Hardcut Thread Mill 2xD – Carmex MTSH 1010 D30 19 W MT9
SKU: MTSH1010D3019WMT9
M8, M10, M12 x 1.25 Metric Internal Mini Hardcut Thread Mill 3xD – Carmex MTSH 0606 C24 1.25 ISO MT9
SKU: MTSH0606C241.25ISOMT9
No. 10 x 32 TPI UN Internal Mini Hardcut Thread Mill 2xD – Carmex MTSH 06037 C10 32 UN MT9
SKU: MTSH06037C1032UNMT9
No. 4 x 40 TPI UN Internal Mini Hardcut Thread Mill 3xD – Carmex MTSH 06021 C8 40 UN MT9
SKU: MTSH06021C840UNMT9
No. 2, No. 3 x 56 TPI UN Internal Mini Hardcut Thread Mill 2xD – Carmex MTSH 06016 C4 56 UN MT9
SKU: MTSH06016C456UNMT9
No. 1, No. 2 x 64 TPI UN Internal Mini Hardcut Thread Mill 2xD – Carmex MTSH 06014 C3 64 UN MT9
SKU: MTSH06014C364UNMT9
M4 x 0.7 Metric Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 06032 D8 0.7 ISO MT7
SKU: MTSB06032D80.7ISOMT7
M4 x 0.7 Metric Internal Mini Coolant Thread Mill 3xD – Carmex MTSB 06032 D12 0.7 ISO MT7
SKU: MTSB06032D120.7IS0MT7
M2 x 0.4 Metric Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 06016 C4 0.4 ISO MT7
SKU: MTSB06016C40.4ISOMT7
5/8 x 11 TPI UN Internal Mini Thread Mill 3xD – Carmex MTS 12114 C50 11 UN MT7
SKU: MTS12114C5011UNMT7
1/2 x 13 TPI UNJ Internal Mini Thread Mill 2.5xD – Carmex MTS 10094 C27 13 UNJ MT8
SKU: MTS10094C2713UNJMT8
1/2 x 13 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 10092 C27 13 UN MT7
SKU: MTS10092C2713UNMT7
7/16 x 20 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 0808 C25 20 UN MT7
SKU: MTS0808C2520UNMT7
7/16 x 14 TPI UNJ Internal Mini Thread Mill 2.5xD – Carmex MTS 08079 C25 14 UNJ MT8
SKU: MTS08079C2514UNJMT8
7/16 x 14 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 08077 C25 14 UN MT7
SKU: MTS08077C2514UNMT7
3/8 x 16 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 08067 C22 16 UN MT7
SKU: MTS08067C2216UNMT7
MJ8 x 1.25 Internal Mini Thread Mill 2.5xD – Carmex MTS 08061 C20 1.25 MJ MT8
SKU: MTS08061C201.25MJMT8
M6, M7 x 0.5 Metric Internal Mini Thread Mill 3xD – Carmex MTS 06054 D20 0.5 ISO MT7
SKU: MTS06054D200.5ISOMT7
M6 x 0.75 Metric Internal Mini Thread Mill 2xD – Carmex MTS 06049 D12 0.75 ISO MT7
SKU: MTS06049D120.75ISOMT7
1/4 x 20 TPI UN Internal Mini Thread Mill 2xD Long 105mm – Carmex MTS 06047 C14 20 UN-L MT7
SKU: MTS06047C1420UN-LMT7
No. 12 x 28 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 06042 C11 28 UN MT7
SKU: MTS06042C1128UNMT7
No. 10 x 32 TPI UN Internal Mini Thread Mill 3xD Long 105mm – Carmex MTS 06037 C15 32 UN-L MT7
SKU: MTS06037C1532UN-LMT7
No. 10, No. 12 x 24 TPI UN Internal Mini Thread Mill 3xD Long 105mm – Carmex MTS 06035 C15 24 UN-L MT7
SKU: MTS06035C1524UN-LMT7
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.
