Solid Carbide Thread Mills
M5 x 0.8 Metric Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 06038 D10 0.8 ISO MT7
SKU: MTSB06038D100.8ISOMT7
No. 10 x 32 TPI UN Internal Mini Coolant Thread Mill 3xD – Carmex MTSB 06037 D15 32 UN MT7
SKU: MTSB06037D1532UNMT7
No. 10 x 32 TPI UN Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 06037 D10 32 UN MT7
SKU: MTSB06037D1032UNMT7
No. 10, No. 12 x 24 TPI UN Internal Mini Coolant Thread Mill 3xD – Carmex MTSB 06035 D15 24 UN MT7
SKU: MTSB06035D1524UNMT7
No. 10, No. 12 x 24 TPI UN Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 06035 D10 24 UN MT7
SKU: MTSB06035D1024UNMT7
No. 8 x 32 TPI UN Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 06032 D9 32 UN MT7
SKU: MTSB06032D932UNMT7
No. 8 x 32 TPI UN Internal Mini Coolant Thread Mill 3xD – Carmex MTSB 06032 D13 32 UN MT7
SKU: MTSB06032D1332UNMT7
M2.5 x 0.45 Metric Internal Mini Coolant Thread Mill 3xD – Carmex MTSB 0602 D7 0.45 ISO MT7
SKU: MTSB0602D70.45ISOMT7
M2.5 x 0.45 Metric Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 0602 D5 0.45 ISO MT7
SKU: MTSB0602D50.45ISOMT7
M3.5 x 0.6 Metric Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 06028 D7 0.6 ISO MT7
SKU: MTSB06028D70.6ISOMT7
No. 6 x 32 TPI UN Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 06025 D7 32 UN MT7
SKU: MTSB06025D732UNMT7
No. 6 x 32 TPI UN Internal Mini Coolant Thread Mill 3xD – Carmex MTSB 06025 D11 32 UN MT7
SKU: MTSB06025D1132UNMT7
M3 x 0.5 Metric Internal Mini Coolant Thread Mill 3xD – Carmex MTSB 06024 D9 0.5 ISO MT7
SKU: MTSB06024D90.5ISOMT7
No. 5, No. 6 x 40 TPI UN Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 06024 D7 40 UN MT7
SKU: MTSB06024D740UNMT7
M3 x 0.5 Metric Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 06024 D6 0.5 ISO MT7
SKU: MTSB06024D60.5ISOMT7
No. 4 x 40 TPI UN Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 06021 D6 40 UN MT7
SKU: MTSB06021D640UNMT7
No. 4 x 40 TPI UN Internal Mini Coolant Thread Mill 4xD – Carmex MTSB 06021 D12 40 UN MT7
SKU: MTSB06021D1240UNMT7
No. 3, No. 4 x 48 TPI UN Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 06019 D5 48 UN MT7
SKU: MTSB06019D548UNMT7
No. 2, No. 3 x 56 TPI UN Internal Mini Coolant Thread Mill 3xD – Carmex MTSB 06016 C7 56 UN MT7
SKU: MTSB06016C756UNMT7
No. 2, No. 3 x 56 TPI UN Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 06016 C4 56 UN MT7
SKU: MTSB06016C456UNMT7
No. 1 x 72 TPI UN Internal Mini Coolant Thread Mill 3xD – Carmex MTSB 06014 C5 72 UN MT7
SKU: MTSB06014C572UNMT7
M1.6, M2 x 0.35 Metric Internal Mini Coolant Thread Mill 3xD – Carmex MTSB 06012 C5 0.35 ISO MT7
SKU: MTSB06012C50.35IS0MT7
No. 0 x 80 TPI UN Internal Mini Coolant Thread Mill 3xD – Carmex MTSB 06012 C4 80 UN MT7
SKU: MTSB06012C480UNMT7
M1.4 x 0.3 Metric Internal Mini Coolant Thread Mill 3xD – Carmex MTSB 06011 C4 0.3 ISO MT7
SKU: MTSB06011C40.3ISOMT7
M1.2, M1.4 x 0.25 Metric Internal Mini Coolant Thread Mill 2xD – Carmex MTSB 06009 C2 0.25 ISO MT7
SKU: MTSB06009C20.25IS0MT7
M20 x 2.5 Metric Internal Mini Thread Mill 2xD – Carmex MTS 1615 E43 2.5 ISO MT7
SKU: MTS1615E432.5ISOMT7
3/4 x 10 TPI UN Internal Mini Thread Mill – Carmex MTS 16144 D59 10 UN MT7
SKU: MTS16144D5910UNMT7
3/4 x 10 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 16144 D41 10 UN MT7
SKU: MTS16144D4110UNMT7
5/8 x 18 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 1212 D35 18 UN MT7
SKU: MTS1212D3518UNMT7
5/8 x 11 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 12114 C34 11 UN MT7
SKU: MTS12114C3411UNMT7
9/16 x 12 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 12105 C31 12 UN MT7
SKU: MTS12105C3112UNMT7
MJ14, MJ16 x 2 Internal Mini Thread Mill 2.5xD – Carmex MTS 1010 C35 2.0 MJ MT8
SKU: MTS1010C352.0MJMT8
MJ12 x 1.75 Internal Mini Thread Mill 2.5xD – Carmex MTS 10092 C30 1.75 MJ MT8
SKU: MTS10092C301.75MJMT8
M10, M12 x 1 Metric Internal Mini Thread Mill 3xD – Carmex MTS 0808 D31 1.0 ISO MT7
SKU: MTS0808D311.0ISOMT7
M10, M14, M16 x 1.5 Metric Internal Mini Thread Mill 4xD – Carmex MTS 0808 C41 1.5 ISO MT7
SKU: MTS0808C411.5ISOMT7
MJ10 x 1.5 Internal Mini Thread Mill 2.5xD – Carmex MTS 0808 C25 1.5 MJ MT8
SKU: MTS0808C251.5MJMT8
1/4 x 20 TPI UNJ Internal Mini Thread Mill 2.5xD – Carmex MTS 06049 C16 20 UNJ MT8
SKU: MTS06049C1620UNJMT8
1/4 x 20 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 06047 C14 20 UN MT7
SKU: MTS06047C1420UNMT7
No. 10 x 32 TPI UN Internal Mini Thread Mill 4xD – Carmex MTS 06037 C20 32 UN MT7
SKU: MTS06037C2032UNMT7
M4, M5 x 0.5 Metric Internal Mini Thread Mill 3xD – Carmex MTS 06034 D12 0.5 ISO MT7
SKU: MTS06034D120.5ISOMT7
No. 8, No. 10 x 32 TPI UNJ Internal Mini Thread Mill 2.5xD – Carmex MTS 06033 C10 32 UNJ MT8
SKU: MTS06033C1032UNJMT8
No. 8 x 32 TPI UN Internal Mini Thread Mill 4xD – Carmex MTS 06032 C17 32 UN MT7
SKU: MTS06032C1732UNMT7
No. 8 x 32 TPI UN Internal Mini Thread Mill 3xD – Carmex MTS 06032 C12 32 UN MT7
SKU: MTS06032C1232UNMT7
M2.5 x 0.45 Metric Internal Mini Thread Mill 2xD – Carmex MTS 0602 C5 0.45 ISO MT7
SKU: MTS0602C50.45ISOMT7
M3.5 x 0.6 Metric Internal Mini Thread Mill 3xD – Carmex MTS 06028 C10 0.6 ISO MT7
SKU: MTS06028C100.6ISOMT7
No. 6 x 32 TPI UN Internal Mini Thread Mill 2xD Long 105mm – Carmex MTS 06025 C7 32 UN-L MT7
SKU: MTS06025C732UN-LMT7
No. 6 x 32 TPI UN Internal Mini Thread Mill 3xD Long 105mm – Carmex MTS 06025 C10 32 UN-L MT7
SKU: MTS06025C1032UN-LMT7
No. 5, No. 6 x 40 TPI UN Internal Mini Thread Mill 3xD – Carmex MTS 06024 C9 40 UN MT7
SKU: MTS06024C940UNMT7
No. 4 x 40 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 06021 C6 40 UN MT7
SKU: MTS06021C640UNMT7
No. 3, No. 4 x 48 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 06019 C5 48 UN MT7
SKU: MTS06019C548UNMT7
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.
