Solid Carbide Thread Mills

789 items
M5 x 0.8 Metric Internal Coolant Bore Thread Mill – Carmex MTB 06038 C9 0.8 ISO MT7

M5 x 0.8 Metric Internal Coolant Bore Thread Mill – Carmex MTB 06038 C9 0.8 ISO MT7

SKU: MTB06038C90.8ISOMT7

Size M5
Pitch 0.8
Flute Length 9.2
Reach 9.2
Overall Length 58
£95.48 ex VAT
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1/8 NPS 27 TPI Internal & External Coolant Bore Thread Mill – Carmex MTB 0312 C04 27 NPS MT7

1/8 NPS 27 TPI Internal & External Coolant Bore Thread Mill – Carmex MTB 0312 C04 27 NPS MT7

SKU: MTB0312C0427NPSMT7

Size 1/8
Pitch 27
Flute Length 10.8
Reach 10.8
Shank Diameter 5/16
Overall Length 63
£127.18 ex VAT
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No. 1, 1/8, –, No. 1, 1/4 x 7 TPI UN Internal Thread Mill – Carmex MT 2020 D45 7 UN MT7

No. 1, 1/8, –, No. 1, 1/4 x 7 TPI UN Internal Thread Mill – Carmex MT 2020 D45 7 UN MT7

SKU: MT2020D457UNMT7

Size 1 1/8 - 1 1/4
Pitch 7
Flute Length 45.3
Reach 45.3
Overall Length 105
£237.79 ex VAT
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M27, M28, M30 x 3 Metric Internal Thread Mill – Carmex MT 2020 D43 3.0 ISO MT7

M27, M28, M30 x 3 Metric Internal Thread Mill – Carmex MT 2020 D43 3.0 ISO MT7

SKU: MT2020D433.0ISOMT7

Size M27 M28 M30
Pitch 3
Flute Length 43.5
Reach 43.5
Shank Diameter 20
Overall Length 105
£237.79 ex VAT
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M20 x 1.5 Metric Internal Thread Mill – Carmex MT 1616 F33 1.5 ISO MT7

M20 x 1.5 Metric Internal Thread Mill – Carmex MT 1616 F33 1.5 ISO MT7

SKU: MT1616F331.5ISOMT7

Size M20
Pitch 1.5
Flute Length 33.8
Reach 33.8
Shank Diameter 16
Overall Length 105
£196.90 ex VAT
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Rc1–2 BSPT 11 TPI Internal & External Thread Mill – Carmex MT 1616 D28 11 BSPT MT7

Rc1–2 BSPT 11 TPI Internal & External Thread Mill – Carmex MT 1616 D28 11 BSPT MT7

SKU: MT1616D2811BSPTMT7

Size RC1 - 2
Pitch 11
Flute Length 28.9
Reach 28.9
Overall Length 105
£196.90 ex VAT
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G1/2–7/8 BSP 14 TPI Internal & External Thread Mill – Carmex MT 1212 D26 14 W MT7

G1/2–7/8 BSP 14 TPI Internal & External Thread Mill – Carmex MT 1212 D26 14 W MT7

SKU: MT1212D2614WMT7

Size G1/2 G7/8
Pitch 14
Flute Length 26.3
Reach 26.3
Overall Length 84
£200.21 ex VAT
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1/2–3/4 NPTF 14 TPI Internal & External Thread Mill – Carmex MT 1212 D20 14 NPTF MT7

1/2–3/4 NPTF 14 TPI Internal & External Thread Mill – Carmex MT 1212 D20 14 NPTF MT7

SKU: MT1212D2014NPTFMT7

Size 1/2 3/4
Pitch 14
Flute Length 20.9
Reach 20.9
Overall Length 84
£166.90 ex VAT
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Rc1/2–7/8 BSPT 14 TPI Internal & External Thread Mill – Carmex MT 1212 D19 14 BSPT MT7

Rc1/2–7/8 BSPT 14 TPI Internal & External Thread Mill – Carmex MT 1212 D19 14 BSPT MT7

SKU: MT1212D1914BSPTMT7

Size RC1/2 RC7/8
Pitch 14
Flute Length 19.1
Reach 19.1
Overall Length 84
£166.90 ex VAT
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3/4 x 10 TPI UN Internal Thread Mill – Carmex MT 1212 C34 10 UN MT7

3/4 x 10 TPI UN Internal Thread Mill – Carmex MT 1212 C34 10 UN MT7

SKU: MT1212C3410UNMT7

Size 3/4
Pitch 10
Flute Length 34.3
Reach 34.3
Overall Length 84
£166.90 ex VAT
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G1 BSP 11 TPI Internal & External Thread Mill – Carmex MT 1212 C24 11 W MT7

G1 BSP 11 TPI Internal & External Thread Mill – Carmex MT 1212 C24 11 W MT7

SKU: MT1212C2411WMT7

Size G>1
Pitch 11
Flute Length 24.2
Reach 24.2
Overall Length 84
£166.90 ex VAT
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M14 x 1.5 Metric Internal Thread Mill – Carmex MT 1010 D21 1.5 ISO MT7

M14 x 1.5 Metric Internal Thread Mill – Carmex MT 1010 D21 1.5 ISO MT7

SKU: MT1010D211.5ISOMT7

Size M14
Pitch 1.5
Flute Length 21.8
Reach 21.8
Shank Diameter 10
Overall Length 73
£133.36 ex VAT
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5/8 x 11 TPI UN Internal Thread Mill – Carmex MT 1010 C28 11 UN MT7

5/8 x 11 TPI UN Internal Thread Mill – Carmex MT 1010 C28 11 UN MT7

SKU: MT1010C2811UNMT7

Size 5/8
Pitch 11
Flute Length 28.9
Reach 28.9
Overall Length 73
£133.36 ex VAT
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7/16 x 14 TPI UN Internal Thread Mill – Carmex MT 0807 C20 14 UN MT7

7/16 x 14 TPI UN Internal Thread Mill – Carmex MT 0807 C20 14 UN MT7

SKU: MT0807C2014UNMT7

Size 7/16
Pitch 14
Flute Length 20.9
Reach 20.9
Overall Length 64
£115.62 ex VAT
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Rc1/16–1/8 BSPT 28 TPI Internal & External Thread Mill – Carmex MT 0606 C9 28 BSPT MT7

Rc1/16–1/8 BSPT 28 TPI Internal & External Thread Mill – Carmex MT 0606 C9 28 BSPT MT7

SKU: MT0606C928BSPTMT7

Size RC1/16 RC1/8
Pitch 28
Flute Length 9.5
Reach 9.5
Overall Length 58
£86.80 ex VAT
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5/16 x 18 TPI UN Internal Thread Mill – Carmex MT 0606 C20 18 UN MT7

5/16 x 18 TPI UN Internal Thread Mill – Carmex MT 0606 C20 18 UN MT7

SKU: MT0606C2018UNMT7

Size 5/16
Pitch 18
Flute Length 20.5
Reach 20.5
Overall Length 58
£104.16 ex VAT
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3/8 x 16 TPI UN Internal Thread Mill – Carmex MT 0606 C16 16 UN MT7

3/8 x 16 TPI UN Internal Thread Mill – Carmex MT 0606 C16 16 UN MT7

SKU: MT0606C1616UNMT7

Size 3/8
Pitch 16
Flute Length 16.7
Reach 16.7
Overall Length 58
£86.80 ex VAT
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5/16 x 18 TPI UN Internal Thread Mill – Carmex MT 0605 C14 18 UN MT7

5/16 x 18 TPI UN Internal Thread Mill – Carmex MT 0605 C14 18 UN MT7

SKU: MT0605C1418UNMT7

Size 5/16
Pitch 18
Flute Length 14.8
Reach 14.8
Overall Length 58
£86.80 ex VAT
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M5 x 0.8 Metric Internal Thread Mill – Carmex MT 0604 C13 0.8 ISO MT7

M5 x 0.8 Metric Internal Thread Mill – Carmex MT 0604 C13 0.8 ISO MT7

SKU: MT0604C130.8ISOMT7

Size M5
Pitch 0.8
Flute Length 13.2
Reach 13.2
Shank Diameter 6
Overall Length 58
£104.16 ex VAT
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M5 x 0.8 Metric Internal Thread Mill – Carmex MT 06036 C9 0.8 ISO MT7

M5 x 0.8 Metric Internal Thread Mill – Carmex MT 06036 C9 0.8 ISO MT7

SKU: MT06036C90.8ISOMT7

Size M5
Pitch 0.8
Flute Length 9.2
Reach 9.2
Shank Diameter 6
Overall Length 58
£86.80 ex VAT
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1/4 x 20 TPI UN Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 06048 E20 20 UN MT3

1/4 x 20 TPI UN Internal Fast Hardcut Thread Mill 3xD – Carmex FSH 06048 E20 20 UN MT3

SKU: FSH06048E2020UNMT3

Size 1/4
Pitch 20
Flute Length 3.81
Reach 20.3
Overall Length 58
£88.10 ex VAT
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1 mm Pitch Metric External Thread Mill Ø12mm – Carmex EMT 1212 E20 1.0 ISO MT7

1 mm Pitch Metric External Thread Mill Ø12mm – Carmex EMT 1212 E20 1.0 ISO MT7

SKU: EMT1212E201.0ISOMT7

Size 12mm
Pitch 1
Flute Length 20.5
Reach 20.5
Shank Diameter 12
Overall Length 84
£245.38 ex VAT
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1.5 mm Pitch MJ External Thread Mill Ø12mm – Carmex EMT 1212 D26 1.5 MJ MT7

1.5 mm Pitch MJ External Thread Mill Ø12mm – Carmex EMT 1212 D26 1.5 MJ MT7

SKU: EMT1212D261.5MJMT7

Size 12mm
Pitch 1.5
Flute Length 26.3
Reach 26.3
Shank Diameter 12
Overall Length 83
£245.38 ex VAT
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14 TPI UN External Thread Mill Ø12mm – Carmex EMT 1212 D20 14 UN MT7

14 TPI UN External Thread Mill Ø12mm – Carmex EMT 1212 D20 14 UN MT7

SKU: EMT1212D2014UNMT7

Size 12mm
Pitch 14
Flute Length 20.9
Reach 20.9
Shank Diameter 12
Overall Length 84
£245.38 ex VAT
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12 TPI UN External Thread Mill Ø12mm – Carmex EMT 1212 D20 12 UN MT7

12 TPI UN External Thread Mill Ø12mm – Carmex EMT 1212 D20 12 UN MT7

SKU: EMT1212D2012UNMT7

Size 12mm
Pitch 12
Flute Length 20.1
Reach 20.1
Shank Diameter 12
Overall Length 84
£245.38 ex VAT
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1.5 mm Pitch Metric External Thread Mill Ø10mm – Carmex EMT 1010 D15 1.5 ISO MT7

1.5 mm Pitch Metric External Thread Mill Ø10mm – Carmex EMT 1010 D15 1.5 ISO MT7

SKU: EMT1010D151.5ISOMT7

Size 10mm
Pitch 1.5
Flute Length 15.8
Reach 15.8
Shank Diameter 10
Overall Length 73
£196.16 ex VAT
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1/4–3/8 x 20 TPI UN Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 08048 C15 20 UN MT11

1/4–3/8 x 20 TPI UN Internal 3-in-1 Hardcut Drill Thread Mill 2xD – Carmex DMTH 08048 C15 20 UN MT11

SKU: DMTH08048C1520UNMT11

Size 1/4 - 3/8
Pitch 20
Reach 15.6
Shank Diameter 8
Overall Length 64
£166.24 ex VAT
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1/4–3/8 x 28 TPI UN Internal 3-in-1 Drill Thread Mill 2xD – Carmex DMT 0805 C14 28 UN MT7

1/4–3/8 x 28 TPI UN Internal 3-in-1 Drill Thread Mill 2xD – Carmex DMT 0805 C14 28 UN MT7

SKU: DMT0805C1428UNMT7

Size 1/4 - 3/8
Pitch 28
Reach 14.5
Shank Diameter 8
Overall Length 64
£108.44 ex VAT
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No. 10 x 32 TPI UN Internal 3-in-1 Drill Thread Mill 2.5xD – Carmex DMT 06038 C14 32 UN-D MT7

No. 10 x 32 TPI UN Internal 3-in-1 Drill Thread Mill 2.5xD – Carmex DMT 06038 C14 32 UN-D MT7

SKU: DMT06038C1432UN-DMT7

Size No. 10
Pitch 32
Reach 14
Shank Diameter 6
Overall Length 58
£108.44 ex VAT
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M16, M17 x 2 Metric Internal Aluminium Thread Mill – Carmex AMT 14126 D35 2.0 ISO K20

M16, M17 x 2 Metric Internal Aluminium Thread Mill – Carmex AMT 14126 D35 2.0 ISO K20

SKU: AMT14126D352.0ISOK20

Size M16 M17
Pitch 2
Flute Length 35
Reach 35
Overall Length 83
£155.06 ex VAT
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M8, M10 x 1.25 Metric Internal Aluminium Thread Mill – Carmex AMT 08064 C16 1.25 ISO K20

M8, M10 x 1.25 Metric Internal Aluminium Thread Mill – Carmex AMT 08064 C16 1.25 ISO K20

SKU: AMT08064C161.25ISOK20

Size M8 M10
Pitch 1.25
Flute Length 16.9
Reach 16.9
Overall Length 64
£134.42 ex VAT
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M4 x 0.7 Metric Internal Thread Mill 3.5xD – Carmex MTI 04032 D14 0.7 ISO MT11

M4 x 0.7 Metric Internal Thread Mill 3.5xD – Carmex MTI 04032 D14 0.7 ISO MT11

SKU: MTI04032D140.7ISOMT11

Size M4
Pitch 0.7
Flute Length 0.7
Reach 14.0
Overall Length 50
£95.44 ex VAT
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1–1, 1/2 x 12 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 1616 E41 12 UN MT7

1–1, 1/2 x 12 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 1616 E41 12 UN MT7

SKU: MTZ1616E4112UNMT7

Size 1 - 1 1/2
Pitch 12
Flute Length 41.3
Reach 41.3
Overall Length 101
£315.44 ex VAT
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7/8 x 14 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 1616 E37 14 UN MT7

7/8 x 14 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 1616 E37 14 UN MT7

SKU: MTZ1616E3714UNMT7

Size 7/8
Pitch 14
Flute Length 37.2
Reach 37.2
Overall Length 101
£315.44 ex VAT
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M20 x 1.5 Metric Internal Through-Flute Coolant Thread Mill – Carmex MTZ 1616 E33 1.5 ISO MT7

M20 x 1.5 Metric Internal Through-Flute Coolant Thread Mill – Carmex MTZ 1616 E33 1.5 ISO MT7

SKU: MTZ1616E331.5ISOMT7

Size M20
Pitch 1.5
Flute Length 33.8
Reach 33.8
Overall Length 101
£315.44 ex VAT
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G1/2–7/8 BSP 14 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 1616 E26 14 W MT7

G1/2–7/8 BSP 14 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 1616 E26 14 W MT7

SKU: MTZ1616E2614WMT7

Size G1/2 G7/8
Pitch 14
Flute Length 26.3
Reach 26.3
Shank Diameter 16
Overall Length 101
£315.44 ex VAT
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Rc1/2–7/8 BSPT 14 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 1616 E26 14 BSPT MT7

Rc1/2–7/8 BSPT 14 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 1616 E26 14 BSPT MT7

SKU: MTZ1616E2614BSPTMT7

Size RC1/2 - RC7/8
Pitch 14
Flute Length 26.3
Reach 26.3
Overall Length 101
£315.44 ex VAT
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G1 BSP 11 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 1616 D38 11 W MT7

G1 BSP 11 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 1616 D38 11 W MT7

SKU: MTZ1616D3811WMT7

Size N/A
Pitch 11
Flute Length 38.1
Reach 38.1
Shank Diameter 16
Overall Length 101
£315.44 ex VAT
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Rc1–2 BSPT 11 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 1616 D28 11 BSPT MT7

Rc1–2 BSPT 11 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 1616 D28 11 BSPT MT7

SKU: MTZ1616D2811BSPTMT7

Size RC1 - 2
Pitch 11
Flute Length 28.9
Reach 28.9
Overall Length 101
£315.44 ex VAT
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M20 x 2.5 Metric Internal Through-Flute Coolant Thread Mill – Carmex MTZ 1615 E33 2.5 ISO MT7

M20 x 2.5 Metric Internal Through-Flute Coolant Thread Mill – Carmex MTZ 1615 E33 2.5 ISO MT7

SKU: MTZ1615E332.5ISOMT7

Size M20
Pitch 2.5
Flute Length 33.8
Reach 33.8
Overall Length 101
£315.44 ex VAT
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1/2–3/4 NPT 14 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 16155 D22 14 NPT MT7

1/2–3/4 NPT 14 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 16155 D22 14 NPT MT7

SKU: MTZ16155D2214NPTMT7

Size 1/2 - 3/4
Pitch 14
Flute Length 22.7
Reach 22.7
Overall Length 101
£315.44 ex VAT
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1/2–3/4 NPTF 14 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 16155 D22 14 NPTF MT7

1/2–3/4 NPTF 14 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 16155 D22 14 NPTF MT7

SKU: MTZ16155D2214NPTFMT7

Size 1/2 - 3/4
Pitch 14
Flute Length 22.7
Reach 22.7
Overall Length 101
£315.44 ex VAT
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3/4 x 10 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 16144 D34 10 UN MT7

3/4 x 10 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 16144 D34 10 UN MT7

SKU: MTZ16144D3410UNMT7

Size 3/4
Pitch 10
Flute Length 34.3
Reach 34.3
Overall Length 105
£315.44 ex VAT
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3/4–1 x 20 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 1212 E27 20 UN MT7

3/4–1 x 20 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 1212 E27 20 UN MT7

SKU: MTZ1212E2720UNMT7

Size 3/4 - 1
Pitch 20
Flute Length 27.3
Reach 27.3
Overall Length 84
£260.92 ex VAT
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3/4 x 16 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 1212 D31 16 UN MT7

3/4 x 16 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 1212 D31 16 UN MT7

SKU: MTZ1212D3116UNMT7

Size 3/4
Pitch 16
Flute Length 31
Reach 31
Overall Length 84
£260.92 ex VAT
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M14, M16 x 1.5 Metric Internal Through-Flute Coolant Thread Mill – Carmex MTZ 1212 D26 1.5 ISO MT7

M14, M16 x 1.5 Metric Internal Through-Flute Coolant Thread Mill – Carmex MTZ 1212 D26 1.5 ISO MT7

SKU: MTZ1212D261.5ISOMT7

Size M14 M16
Pitch 1.5
Flute Length 26.3
Reach 26.3
Overall Length 84
£260.92 ex VAT
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M16, M18, M20 x 2 Metric Internal Through-Flute Coolant Thread Mill – Carmex MTZ 12118 D27 2.0 ISO MT7

M16, M18, M20 x 2 Metric Internal Through-Flute Coolant Thread Mill – Carmex MTZ 12118 D27 2.0 ISO MT7

SKU: MTZ12118D272.0ISOMT7

Size M16 M18 M20
Pitch 2
Flute Length 27
Reach 27
Overall Length 84
£260.92 ex VAT
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9/16 x 12 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 12116 D37 12 UN MT7

9/16 x 12 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 12116 D37 12 UN MT7

SKU: MTZ12116D3712UNMT7

Size 9/16
Pitch 12
Flute Length 37
Reach 37
Overall Length 84
£313.08 ex VAT
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5/8, 7/8 BSW 11 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 12109 D28 11 W MT7

5/8, 7/8 BSW 11 TPI Internal & External Through-Flute Coolant Thread Mill – Carmex MTZ 12109 D28 11 W MT7

SKU: MTZ12109D2811WMT7

Size 5/8 7/8
Pitch 11
Flute Length 28.9
Reach 28.9
Overall Length 84
£260.92 ex VAT
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9/16 x 12 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 12105 C26 12 UN MT7

9/16 x 12 TPI UN Internal Through-Flute Coolant Thread Mill – Carmex MTZ 12105 C26 12 UN MT7

SKU: MTZ12105C2612UNMT7

Size 9/16
Pitch 12
Flute Length 26.5
Reach 26.5
Overall Length 84
£260.92 ex VAT
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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.