Solid Carbide Thread Mills

789 items
Tr10 x 2, Tr11 x 2 Trapezoidal Internal Thread Mill 2xD – Carmex MTI 08066 C21 2 TR MT8

Tr10 x 2, Tr11 x 2 Trapezoidal Internal Thread Mill 2xD – Carmex MTI 08066 C21 2 TR MT8

SKU: MTI08066C212TRMT8

Size TR10 TR11
Pitch 2
Flute Length 2
Reach 21
Shank Diameter 8
Overall Length 64
£127.22 ex VAT
View Product
60° Partial Profile 0.5–1.0 mm Pitch Internal & External Thread Mill – Carmex MTI 0604 C12 A60 MT11

60° Partial Profile 0.5–1.0 mm Pitch Internal & External Thread Mill – Carmex MTI 0604 C12 A60 MT11

SKU: MTI0604C12A60MT11

Pitch 0.5-1.0 (48-24)
Reach 12.5
Shank Diameter 6
Overall Length 58
£95.44 ex VAT
View Product
55° Partial Profile 28–20 TPI Internal & External Thread Mill – Carmex MTI 06044 C14 A55 MT11

55° Partial Profile 28–20 TPI Internal & External Thread Mill – Carmex MTI 06044 C14 A55 MT11

SKU: MTI06044C14A55MT11

Pitch (28-20)
Reach 14
Shank Diameter 6
Overall Length 58
Flute Quantity 3
£95.44 ex VAT
View Product
55° Partial Profile 40–32 TPI Internal & External Thread Mill – Carmex MTI 03023 C7 A55 MT11

55° Partial Profile 40–32 TPI Internal & External Thread Mill – Carmex MTI 03023 C7 A55 MT11

SKU: MTI03023C7A55MT11

Pitch (40-32)
Reach 7
Shank Diameter 3
Overall Length 39
Flute Quantity 3
£95.44 ex VAT
View Product
60° Partial Profile 0.35–0.6 mm Pitch Internal & External Thread Mill – Carmex MTI 03019 C5 A60 MT11

60° Partial Profile 0.35–0.6 mm Pitch Internal & External Thread Mill – Carmex MTI 03019 C5 A60 MT11

SKU: MTI03019C5A60MT11

Pitch 0.35-0.6 (72-40)
Reach 5.2
Shank Diameter 3
Overall Length 39
£95.44 ex VAT
View Product
M1 x 0.25 Metric Internal Thread Mill 3.5xD – Carmex MTI 03007 C3 0.25 ISO MT11

M1 x 0.25 Metric Internal Thread Mill 3.5xD – Carmex MTI 03007 C3 0.25 ISO MT11

SKU: MTI03007C30.25ISOMT11

Size M1
Pitch 0.25
Flute Length 0.25
Reach 3.6
Overall Length 39
£95.44 ex VAT
View Product
3/8 x 24 TPI UNJ Internal Coolant Bore Thread Mill – Carmex MTB 10082 D19 24 UNJ MT7

3/8 x 24 TPI UNJ Internal Coolant Bore Thread Mill – Carmex MTB 10082 D19 24 UNJ MT7

SKU: MTB10082D1924UNJMT7

Size 3/8
Pitch 24
Flute Length 19.6
Reach 19.6
Shank Diameter 10
Overall Length 73
£164.31 ex VAT
View Product
1–2 NPTF 11.5 TPI Internal & External Thread Mill – Carmex MT 1616 D27 11.5 NPTF MT7

1–2 NPTF 11.5 TPI Internal & External Thread Mill – Carmex MT 1616 D27 11.5 NPTF MT7

SKU: MT1616D2711.5NPTFMT7

Size 1 - 2
Pitch 11.5
Flute Length 27.6
Reach 27.6
Overall Length 105
£196.90 ex VAT
View Product
7/8 x 9 TPI UN Internal Thread Mill – Carmex MT 1615 C38 9 UN MT7

7/8 x 9 TPI UN Internal Thread Mill – Carmex MT 1615 C38 9 UN MT7

SKU: MT1615C389UNMT7

Size 7/8
Pitch 9
Flute Length 38.1
Reach 38.1
Overall Length 105
£196.90 ex VAT
View Product
M18, M20 x 2.5 Metric Internal Thread Mill – Carmex MT 1414 D48 2.5 ISO MT7

M18, M20 x 2.5 Metric Internal Thread Mill – Carmex MT 1414 D48 2.5 ISO MT7

SKU: MT1414D482.5ISOMT7

Size M18 M20
Pitch 2.5
Flute Length 48.8
Reach 48.8
Shank Diameter 14
Overall Length 105
£222.77 ex VAT
View Product
M10 x 1 Metric Internal Thread Mill – Carmex MT 0808 D16 1.0 ISO MT7

M10 x 1 Metric Internal Thread Mill – Carmex MT 0808 D16 1.0 ISO MT7

SKU: MT0808D161.0ISOMT7

Size M10
Pitch 1
Flute Length 16.5
Reach 16.5
Shank Diameter 8
Overall Length 64
£115.62 ex VAT
View Product
M10, M12 x 1.5 Metric Internal Thread Mill – Carmex MT 0807 C24 1.5 ISO MT7

M10, M12 x 1.5 Metric Internal Thread Mill – Carmex MT 0807 C24 1.5 ISO MT7

SKU: MT0807C241.5ISOMT7

Size M10 M12
Pitch 1.5
Flute Length 24.8
Reach 24.8
Shank Diameter 8
Overall Length 76
£138.72 ex VAT
View Product
1/4 x 28 TPI UN Internal Thread Mill – Carmex MT 06052 C15 28 UN MT7

1/4 x 28 TPI UN Internal Thread Mill – Carmex MT 06052 C15 28 UN MT7

SKU: MT06052C1528UNMT7

Size 1/4
Pitch 28
Flute Length 15
Reach 15
Overall Length 58
£86.80 ex VAT
View Product
M4 x 0.7 Metric Internal Thread Mill – Carmex MT 06031 C7 0.7 ISO MT7

M4 x 0.7 Metric Internal Thread Mill – Carmex MT 06031 C7 0.7 ISO MT7

SKU: MT06031C70.7ISOMT7

Size M4
Pitch 0.7
Flute Length 7.4
Reach 7.4
Shank Diameter 6
Overall Length 58
£86.80 ex VAT
View Product
M3, M4 x 0.5 Metric Internal Thread Mill – Carmex MT 06022 C5 0.5 ISO MT7

M3, M4 x 0.5 Metric Internal Thread Mill – Carmex MT 06022 C5 0.5 ISO MT7

SKU: MT06022C50.5ISOMT7

Size M3 M4
Pitch 0.5
Flute Length 5.3
Reach 5.3
Shank Diameter 6
Overall Length 58
£86.80 ex VAT
View Product
20 TPI UNJ External Thread Mill Ø12mm – Carmex EMT 1212 E27 20 UNJ MT7

20 TPI UNJ External Thread Mill Ø12mm – Carmex EMT 1212 E27 20 UNJ MT7

SKU: EMT1212E2720UNJMT7

Size 12mm
Pitch 20
Flute Length 27.3
Reach 27.3
Shank Diameter 12
Overall Length 83
£245.38 ex VAT
View Product
12 TPI UNJ External Thread Mill Ø12mm – Carmex EMT 1212 D26 12 UNJ MT7

12 TPI UNJ External Thread Mill Ø12mm – Carmex EMT 1212 D26 12 UNJ MT7

SKU: EMT1212D2612UNJMT7

Size 12mm
Pitch 12
Flute Length 26.5
Reach 26.5
Shank Diameter 12
Overall Length 83
£245.38 ex VAT
View Product
5/16 x 18 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 06056 C14 18 UN MT7

5/16 x 18 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 06056 C14 18 UN MT7

SKU: MTZ06056C1418UNMT7

Size 5/16
Pitch 18
Flute Length 14.8
Reach 14.8
Overall Length 58
£139.46 ex VAT
View Product
1/4 x 20 TPI UN Internal Mini Hardcut Thread Mill 3xD – Carmex MTSH 06047 C19 20 UN MT9

1/4 x 20 TPI UN Internal Mini Hardcut Thread Mill 3xD – Carmex MTSH 06047 C19 20 UN MT9

SKU: MTSH06047C1920UNMT9

Size 1/4
Pitch 20
Flute Length 3.81
Reach 19
Overall Length 58
£112.23 ex VAT
View Product
M5 x 0.8 Metric Internal Mini Hardcut Thread Mill 3xD – Carmex MTSH 06038 C16 0.8 ISO MT9

M5 x 0.8 Metric Internal Mini Hardcut Thread Mill 3xD – Carmex MTSH 06038 C16 0.8 ISO MT9

SKU: MTSH06038C160.8ISOMT9

Size M5
Pitch 0.8
Flute Length 2.4
Reach 16
Overall Length 58
£112.23 ex VAT
View Product
M2.5 x 0.45 Metric Internal Mini Hardcut Thread Mill 2xD – Carmex MTSH 0602 C5 0.45 ISO MT9

M2.5 x 0.45 Metric Internal Mini Hardcut Thread Mill 2xD – Carmex MTSH 0602 C5 0.45 ISO MT9

SKU: MTSH0602C50.45ISOMT9

Size M2.5
Pitch 0.45
Flute Length 1.35
Reach 5.5
Overall Length 58
£112.23 ex VAT
View Product
M2 x 0.4 Metric Internal Mini Coolant Thread Mill 3xD – Carmex MTSB 06016 C6 0.4 ISO MT7

M2 x 0.4 Metric Internal Mini Coolant Thread Mill 3xD – Carmex MTSB 06016 C6 0.4 ISO MT7

SKU: MTSB06016C60.4ISOMT7

Size M2
Pitch 0.4
Flute Length 1.2
Reach 6.4
Overall Length 58
£117.11 ex VAT
View Product
M16, M18, M20 x 2 Metric Internal Mini Thread Mill 3xD – Carmex MTS 12118 D50 2.0 ISO MT7

M16, M18, M20 x 2 Metric Internal Mini Thread Mill 3xD – Carmex MTS 12118 D50 2.0 ISO MT7

SKU: MTS12118D502.0ISOMT7

Size M16 M18 M20
Pitch 2
Flute Length 6
Reach 50
Overall Length 105
£208.58 ex VAT
View Product
9/16 x 12 TPI UN Internal Mini Thread Mill 3xD – Carmex MTS 12105 C45 12 UN MT7

9/16 x 12 TPI UN Internal Mini Thread Mill 3xD – Carmex MTS 12105 C45 12 UN MT7

SKU: MTS12105C4512UNMT7

Size 9/16
Pitch 12
Flute Length 6.35
Reach 45
Shank Diameter 12
Overall Length 84
£208.58 ex VAT
View Product
M14, M17 x 2 Metric Internal Mini Thread Mill 2xD – Carmex MTS 1010 D30 2.0 ISO MT7

M14, M17 x 2 Metric Internal Mini Thread Mill 2xD – Carmex MTS 1010 D30 2.0 ISO MT7

SKU: MTS1010D302.0ISOMT7

Size M14 M17
Pitch 2
Flute Length 6
Reach 30
Overall Length 73
£168.41 ex VAT
View Product
M10, M12 x 0.75 Metric Internal Mini Thread Mill 2.5xD – Carmex MTS 0808 D25 0.75 ISO MT7

M10, M12 x 0.75 Metric Internal Mini Thread Mill 2.5xD – Carmex MTS 0808 D25 0.75 ISO MT7

SKU: MTS0808D250.75ISOMT7

Size M10 M12
Pitch 0.75
Flute Length 2.25
Reach 25
Overall Length 64
£130.12 ex VAT
View Product
7/16 x 20 TPI UNJ Internal Mini Thread Mill 2.5xD – Carmex MTS 0808 C28 20 UNJ MT8

7/16 x 20 TPI UNJ Internal Mini Thread Mill 2.5xD – Carmex MTS 0808 C28 20 UNJ MT8

SKU: MTS0808C2820UNJMT8

Size 7/16
Pitch 20
Flute Length 3.81
Reach 28
Overall Length 64
£143.12 ex VAT
View Product
3/8 x 16 TPI UNJ Internal Mini Thread Mill 2.5xD – Carmex MTS 08069 C24 16 UNJ MT8

3/8 x 16 TPI UNJ Internal Mini Thread Mill 2.5xD – Carmex MTS 08069 C24 16 UNJ MT8

SKU: MTS08069C2416UNJMT8

Size 3/8
Pitch 16
Flute Length 4.76
Reach 24
Overall Length 64
£143.12 ex VAT
View Product
M8, M10, M12 x 1.25 Metric Internal Mini Thread Mill 4xD – Carmex MTS 08064 C33 1.25 ISO MT7

M8, M10, M12 x 1.25 Metric Internal Mini Thread Mill 4xD – Carmex MTS 08064 C33 1.25 ISO MT7

SKU: MTS08064C331.25ISOMT7

Size M8 M10 M12
Pitch 1.25
Flute Length 3.75
Reach 33.5
Overall Length 64
£130.12 ex VAT
View Product
5/16, 9/16 x 18 TPI UNJ Internal Mini Thread Mill 2.5xD – Carmex MTS 08061 C20 18 UNJ MT8

5/16, 9/16 x 18 TPI UNJ Internal Mini Thread Mill 2.5xD – Carmex MTS 08061 C20 18 UNJ MT8

SKU: MTS08061C2018UNJMT8

Size 5/16 9/16
Pitch 18
Flute Length 4.23
Reach 20
Overall Length 64
£143.12 ex VAT
View Product
1/4 x 28 TPI UNJ Internal Mini Thread Mill 2.5xD – Carmex MTS 08051 C16 28 UNJ MT8

1/4 x 28 TPI UNJ Internal Mini Thread Mill 2.5xD – Carmex MTS 08051 C16 28 UNJ MT8

SKU: MTS08051C1628UNJMT8

Size 1/4
Pitch 28
Flute Length 2.72
Reach 16
Overall Length 64
£143.12 ex VAT
View Product
MJ6 x 1 Internal Mini Thread Mill 2.5xD – Carmex MTS 06048 C15 1.0 MJ MT8

MJ6 x 1 Internal Mini Thread Mill 2.5xD – Carmex MTS 06048 C15 1.0 MJ MT8

SKU: MTS06048C151.0MJMT8

Size MJ 6
Pitch 1
Flute Length 3
Reach 15
Shank Diameter 6
Overall Length 58
£107.37 ex VAT
View Product
1/4 x 20 TPI UN Internal Mini Thread Mill 3xD Long 105mm – Carmex MTS 06047 C19 20 UN-L MT7

1/4 x 20 TPI UN Internal Mini Thread Mill 3xD Long 105mm – Carmex MTS 06047 C19 20 UN-L MT7

SKU: MTS06047C1920UN-LMT7

Size 1/4
Pitch 20
Flute Length 3.81
Reach 19
Shank Diameter 6
Overall Length 105
£102.44 ex VAT
View Product
M5, M6 x 0.35 Metric Internal Mini Thread Mill 3xD – Carmex MTS 06045 D14 0.35 ISO MT7

M5, M6 x 0.35 Metric Internal Mini Thread Mill 3xD – Carmex MTS 06045 D14 0.35 ISO MT7

SKU: MTS06045D140.35IS0MT7

Size M5 M6
Pitch 0.35
Flute Length 1.05
Reach 14.5
Overall Length 58
£74.97 ex VAT
View Product
No. 8 x 36 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 06033 C9 36 UN MT7

No. 8 x 36 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 06033 C9 36 UN MT7

SKU: MTS06033C936UNMT7

Size No. 8
Pitch 36
Flute Length 2.12
Reach 9
Shank Diameter 6
Overall Length 58
£97.61 ex VAT
View Product
No. 8 x 32 TPI UN Internal Mini Thread Mill 3xD Long 105mm – Carmex MTS 06032 C12 32 UN-L MT7

No. 8 x 32 TPI UN Internal Mini Thread Mill 3xD Long 105mm – Carmex MTS 06032 C12 32 UN-L MT7

SKU: MTS06032C1232UN-LMT7

Size No. 8
Pitch 32
Flute Length 2.38
Reach 12.5
Shank Diameter 6
Overall Length 105
£102.44 ex VAT
View Product
M2.5 x 0.45 Metric Internal Mini Thread Mill 3xD Long 105mm – Carmex MTS 0602 C8 0.45 ISO-L MT7

M2.5 x 0.45 Metric Internal Mini Thread Mill 3xD Long 105mm – Carmex MTS 0602 C8 0.45 ISO-L MT7

SKU: MTS0602C80.45ISO-LMT7

Size M2.5
Pitch 0.45
Flute Length 1.35
Reach 8
Overall Length 105
£102.44 ex VAT
View Product
M3.5 x 0.6 Metric Internal Mini Thread Mill 2xD – Carmex MTS 06028 C7 0.6 ISO MT7

M3.5 x 0.6 Metric Internal Mini Thread Mill 2xD – Carmex MTS 06028 C7 0.6 ISO MT7

SKU: MTS06028C70.6ISOMT7

Size M3.5
Pitch 0.6
Flute Length 1.8
Reach 7.5
Overall Length 58
£97.61 ex VAT
View Product
No. 6 x 32 TPI UNJ Internal Mini Thread Mill 2.5xD – Carmex MTS 06025 C7 32 UNJ MT8

No. 6 x 32 TPI UNJ Internal Mini Thread Mill 2.5xD – Carmex MTS 06025 C7 32 UNJ MT8

SKU: MTS06025C732UNJMT8

Size No. 6
Pitch 32
Flute Length 2.38
Reach 7.1
Overall Length 58
£107.37 ex VAT
View Product
No. 2, No. 3 x 56 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 06016 C4 56 UN MT7

No. 2, No. 3 x 56 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 06016 C4 56 UN MT7

SKU: MTS06016C456UNMT7

Size No. 2 No. 3
Pitch 56
Flute Length 1.36
Reach 4.4
Shank Diameter 6
Overall Length 58
£97.61 ex VAT
View Product
No. 6 x 32 TPI UN Internal Mini Thread Mill 4xD – Carmex MTS 03025 C14 32 UN MT7

No. 6 x 32 TPI UN Internal Mini Thread Mill 4xD – Carmex MTS 03025 C14 32 UN MT7

SKU: MTS03025C1432UNMT7

Size No. 6
Pitch 32
Flute Length 2.38
Reach 14.8
Shank Diameter 3
Overall Length 39
£97.61 ex VAT
View Product
No. 2, No. 3 x 56 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 03016 C4 56 UN MT7

No. 2, No. 3 x 56 TPI UN Internal Mini Thread Mill 2xD – Carmex MTS 03016 C4 56 UN MT7

SKU: MTS03016C456UNMT7

Size No. 2 No. 3
Pitch 56
Flute Length 1.36
Reach 4.4
Shank Diameter 3
Overall Length 39
£97.61 ex VAT
View Product
M1.2, M1.4 x 0.25 Metric Internal Mini Thread Mill 2xD – Carmex MTS 03009 C3 0.25 ISO MT7

M1.2, M1.4 x 0.25 Metric Internal Mini Thread Mill 2xD – Carmex MTS 03009 C3 0.25 ISO MT7

SKU: MTS03009C30.25ISOMT7

Size M1.2 M1.4
Pitch 0.25
Flute Length 0.75
Reach 3
Overall Length 39
£97.61 ex VAT
View Product
Tr16 x 4, Tr18 x 4, Tr20 x 4 Trapezoidal Internal Thread Mill 2xD – Carmex MTI 10092 C33 4 TR MT8

Tr16 x 4, Tr18 x 4, Tr20 x 4 Trapezoidal Internal Thread Mill 2xD – Carmex MTI 10092 C33 4 TR MT8

SKU: MTI10092C334TRMT8

Size TR16 TR18 TR20
Pitch 4
Flute Length 4
Reach 33
Shank Diameter 10
Overall Length 73
£164.62 ex VAT
View Product
60° Partial Profile Int 1.0–1.75 mm Pitch Internal & External Thread Mill – Carmex MTI 0808 D30 A60 MT8

60° Partial Profile Int 1.0–1.75 mm Pitch Internal & External Thread Mill – Carmex MTI 0808 D30 A60 MT8

SKU: MTI0808D30A60MT8

Pitch 0.8-1.75 (32-14) **
Reach 30
Overall Length 64
£127.22 ex VAT
View Product
Tr12 x 3 Trapezoidal Internal Thread Mill 2xD – Carmex MTI 0807 C25 3 TR MT8

Tr12 x 3 Trapezoidal Internal Thread Mill 2xD – Carmex MTI 0807 C25 3 TR MT8

SKU: MTI0807C253TRMT8

Size TR12
Pitch 3
Flute Length 3
Reach 25
Shank Diameter 8
Overall Length 64
£127.22 ex VAT
View Product
1/2-10 Acme Internal Thread Mill 2xD – Carmex MTI 0375 D10 10 ACME MT8

1/2-10 Acme Internal Thread Mill 2xD – Carmex MTI 0375 D10 10 ACME MT8

SKU: MTI0375D1010ACMEMT8

Size 1/2 - 10
Pitch 10
Reach 25.4
Shank Diameter 3/8
Overall Length 76
£164.62 ex VAT
View Product
M4 x 0.7 Metric Internal Drill Thread Mill – Carmex MTD 06032 B7 0.7 ISO MT7

M4 x 0.7 Metric Internal Drill Thread Mill – Carmex MTD 06032 B7 0.7 ISO MT7

SKU: MTD06032B70.7ISOMT7

Size M4
Pitch 0.7
Flute Length 9.8
Reach 9.8
Shank Diameter 6
Overall Length 54
£116.16 ex VAT
View Product
G1 BSP 11 TPI Internal & External Coolant Bore Thread Mill – Carmex MTB 1616 D38 11 W MT7

G1 BSP 11 TPI Internal & External Coolant Bore Thread Mill – Carmex MTB 1616 D38 11 W MT7

SKU: MTB1616D3811WMT7

Size N/A
Pitch 11
Flute Length 38.1
Reach 38.1
Overall Length 105
£216.59 ex VAT
View Product
M20 x 2.5 Metric Internal Coolant Bore Thread Mill – Carmex MTB 1615 E33 2.5 ISO MT7

M20 x 2.5 Metric Internal Coolant Bore Thread Mill – Carmex MTB 1615 E33 2.5 ISO MT7

SKU: MTB1615E332.5ISOMT7

Size M20
Pitch 2.5
Flute Length 33.8
Reach 33.8
Overall Length 105
£216.59 ex VAT
View Product

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.