Deep Hole Thread Milling

Deep hole cutting tools"Long reach application cutters for small and large diameter size holes. Swarf problem for deep threads eliminated in all materials. Programming control of cutting data enables successful production."

Long reach thread milling cutters for small and large diameter size holes.

Deep hole cutting tools Thread Milling
Deep Holes

Thread Milling Deep Holes

Thread milling deep holes with T-TECH multi-fluted solid carbide cutters, is an ideal choice for both soft and demanding materials. The process eliminates swarf crowding which often results in ripped threads and broken taps. Excellent surface texture and finish is achievable.

Unlike tapping you control the speed, feed and cut, keeping the cutter in one piece.

We will advise on your application, providing programming assistance where required.

T-TECH deep hole cutters offer less resistance, producing lower cutting forces. This allows deeper threads to be produced before push-off occurs.

Cutters are manufactured in sub-micro grain, 10%Co carbide. Surface coatings available.

Standard range deep hole thread milling cutters offer the following: -

  • Small to large sizes from 3mm and No6UNC
  • Standard range has a reach of three times diameter
  • Reach up to 100mm for our largest 32mm diameter solid runover cutter
  • Metric (coarse and fine), 2mm & 3mm constant series
  • Unified (UNC & UNF), 8UN & 12UN constant series

Special deep hole thread milling cutters in short delivery times

  • Quick deliveries, typically 5 days
  • Extra reach above 3 x d available where achievable
  • Whitworth (BSW & BSF), BSP, special thread forms
  • Shell type cutters in solid carbide available for larger sizes requiring a reach exceeding 100mm

deep hole thread milling

Deep Hole Thread Milling - Carbide Thread Mills Metric Coarse
Tool Code Thread Size D1 D2 D3 L1 L2 L3
CTM-3006MM-3D M3 x 0.50 2.30 1.40 4.00 1.50 10.00 55
CTM-3506MM-3D* M3.5 x 0.60 2.60 1.60 4.00 1.80 11.70 55
CTM-4007MM-3D M4 x 0.70 2.90 1.75 4.00 2.10 13.40 55
CTM-4575MM-3D* M4.5 x 0.75 3.30 2.10 4.00 2.25 15.00 55
CTM-5008MM-3D M5 x 0.80 3.80 2.40 4.00 2.40 16.60 55
CTM-6010MM-3D M6 x 1.00 4.50 2.75 6.00 3.00 20.00 60
CTM-8125MM-3D M8 x 1.25 6.00 3.90 6.00 3.75 26.25 65
CTM-1015MM-3D M10 x 1.50 7.80 5.20 8.00 4.50 33.00 75
CTM-2175MM-3D M12 x 1.75 9.50 6.50 10.00 5.25 39.50 80
CTM-1420MM-3D M14 x 2.00 11.00 7.50 12.00 6.00 46.00 100
CTM-1620MM-3D M16 x 2.00 12.00 8.50 12.00 6.00 52.00 100

All cutters with 10.0 and 12.0 diameter shanks have internal coolant feed.

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Deep Hole Thread Milling - Carbide Thread Mills Metric Fine
Tool Code Thread Size D1 D2 D3 L1 L2 L3
CTM-5005MM-3D* M5 x 0.50 4.00 3.00 4.00 1.50 16.00 55
CTM-6075MM-3D* M6 x 0.75 4.50 3.25 6.00 2.25 19.50 60
CTM-8010MM-3D M8 x 1.00 6.00 4.20 6.00 3.00 26.00 65
CTM-1125MM-3D M10 x 1.25 8.00 5.50 8.00 3.75 32.50 75
CTM-2125MM-3D M12 x 1.25 9.70 7.50 10.00 3.75 38.50 80
CTM-1415MM-3D M14 x 1.50 10.00 7.00 10.00 4.50 45.00 80
CTM-1615MM-3D M16 x 1.50 12.00 9.00 12.00 4.50 51.00 80

All cutters with 10.0 and 12.0 diameter shanks have internal coolant feed.

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Deep Hole Thread Milling - Carbide Thread Mills U.N.F.
Tool Code Thread Size D1 D2 D3 L1 L2 L3
CTM-0640UN-3D* #6-40 UNF 2.40 1.40 4.00 1.905 12.30 55
CTM-0836UN-3D* #8-36 UNF 3.00 1.90 4.00 2.117 14.40 55
CTM-1032UN-3D #10-32 UNF 3.50 2.25 4.00 2.381 16.60 55
CTM-1428UN-3D 1/4"-28 UNF 4.80 3.25 6.00 2.721 20.80 60
CTM-3124UN-3D 5/16"-24 UNF 5.50 3.50 6.00 3.175 26.10 65
CTM-3824UN-3D 3/8"-24 UNF 7.50 5.50 8.00 3.175 31.10 75
CTM-1220UN-3D 1/2"-20 UNF 8.00 5.70 8.00 3.810 40.50 80
CTM-5818UN-3D 5/8"-18 UNF 10.00 7.50 10.00 4.234 50.80 90

All cutters with 10.0 and 12.0 diameter shanks have internal coolant feed.

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Deep Hole Thread Milling - Carbide Thread Mills U.N.C.
Tool Code Thread Size D1 D2 D3 L1 L2 L3
CTM-0632UN-3D #6-32 UNC 2.30 1.10 4.00 2.381 12.60 55
CTM-0832UN-3D #8-32 UNC 3.00 1.75 4.00 2.381 14.60 55
CTM-1024UN-3D #10-24 UNC 3.20 1.60 4.00 3.175 17.10 55
CTM-1224UN-3D* #12-24 UNC 3.80 2.20 6.00 3.175 19.10 60
CTM-1420UN-3D 1/4"-20 UNC 4.40 2.50 6.00 3.810 21.50 60
CTM-3118UN-3D 5/16"-18 UNC 5.80 3.50 6.00 4.234 26.80 65
CTM-3816UN-3D 3/8"-16 UNC 7.20 5.00 8.00 4.763 31.20 75
CTM-4314UN-3D 7/16"-14 UNC 8.00 5.00 8.00 5.443 37.60 75
CTM-1213UN-3D 1/2"-13 UNC 9.50 6.50 10.00 5.861 41.90 90
CTM-5811UN-3D 5/8"-11 UNC 12.00 8.00 12.00 6.927 52.60 100

All cutters with 10.0 and 12.0 diameter shanks have internal coolant feed.


*Items are not available from stock, made to order only, typical delivery 4 working days.


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