STANDARD DIMENSIONS

55° Coated Carbide End Mill Sizes

Select a profile below to review its dimensional drawing, typical applications and standard order numbers.

CoatingNACO4
Helix35°
Cutting Ø0 / −0.02 mm
Shank / Runouth6 / ≤0.01 mm
Machinable Materials
Steel ≤ HRC 40 Stainless Steel Cast Iron
Use within the recommended workpiece-hardness range.

55° COATED SERIES

4-Flute Flat End Mills

43 standard sizes
PRONIXT 55° four-flute coated flat carbide end mill dimensions
Common carbide end mill machining operations including face, shoulder, plunge, slot and profile milling
Typical Applications

Side Milling, Shoulders and Flat Bottoms

For side milling, shoulder milling and flat-bottom machining where stable cutting and edge strength are priorities.

Standard Dimensions

Select the order number that matches the required cutting diameter, flute length, shank diameter and overall length.

43 sizes · Unit: mm
Order No. Ød L1 ØD OAL Flutes
55-E-1.0-50-4F134504
55-E-1.5-50-4F1.544504
55-E-2.0-50-4F264504
55-E-2.5-50-4F2.574504
55-E-3.0-50A-4F383504
55-E-3.0-75A-4F3123754
55-E-3.0-50B-4F384504
55-E-3.5-50-4F3.594504
55-E-4.0-50-4F4104504
55-E-4.0-75-4F4164754
55-E-4.0-100-4F42041004
55-E-5.0-50-4F5135504
55-E-5.0-75-4F5205754
55-E-6.0-50-4F6156504
55-E-6.0-75-4F6246754
55-E-6.0-100-4F63061004
55-E-6.0-150-4F64061504
55-E-7.0-60-4F7188604
55-E-8.0-60-4F8208604
55-E-8.0-75-4F8258754
55-E-8.0-100-4F83581004
55-E-8.0-150-4F84581504
55-E-8.0-200-4F86082004
55-E-9.0-75-4F92310754
55-E-10-75-4F102510754
55-E-10-100-4F1040101004
55-E-10-150-4F1060101504
55-E-10-200-4F1065102004
55-E-11-75-4F112812754
55-E-12-75-4F123012754
55-E-12-100-4F1250121004
55-E-12-150-4F1260121504
55-E-12-200-4F1270122004
55-E-14-100-4F1445141004
55-E-14-150-4F1470141504
55-E-16-100-4F1645161004
55-E-16-150-4F1670161504
55-E-16-200-4F1675162004
55-E-18-100-4F1845181004
55-E-18-150-4F1870181504
55-E-20-100-4F2045201004
55-E-20-150-4F2070201504
55-E-20-200-4F2080202004

55° COATED SERIES

2-Flute Flat End Mills

35 standard sizes
PRONIXT 55° two-flute coated flat carbide end mill dimensions
Common carbide end mill machining operations including face, shoulder, plunge, slot and profile milling
Typical Applications

Slotting and Chip-Clearance Applications

The larger flute space supports chip evacuation in slotting and applications that need additional chip clearance.

Standard Dimensions

Select the order number that matches the required cutting diameter, flute length, shank diameter and overall length.

35 sizes · Unit: mm
Order No. Ød L1 ØD OAL Flutes
55-E-1.0-50-2F134502
55-E-1.5-50-2F1.544502
55-E-2.0-50-2F264502
55-E-2.5-50-2F2.574502
55-E-3.0-50A-2F383502
55-E-3.0-75A-2F3103752
55-E-3.0-50B-2F384502
55-E-3.5-50-2F3.594502
55-E-4.0-50-2F4104502
55-E-4.0-75-2F4154752
55-E-4.0-100-2F41841002
55-E-5.0-50-2F5135502
55-E-5.0-75-2F5155752
55-E-6.0-50-2F6156502
55-E-6.0-75-2F6246752
55-E-6.0-100-2F63061002
55-E-6.0-150-2F63561502
55-E-8.0-60-2F8208602
55-E-8.0-75-2F8308752
55-E-8.0-100-2F83581002
55-E-8.0-150-2F84081502
55-E-10-75-2F102510752
55-E-10-100-2F1040101002
55-E-10-150-2F1050101502
55-E-12-75-2F123012752
55-E-12-100-2F1240121002
55-E-12-150-2F1260121502
55-E-14-100-2F1440141002
55-E-14-150-2F1470141502
55-E-16-100-2F1640161002
55-E-16-150-2F1670161502
55-E-18-100-2F1840181002
55-E-18-150-2F1870181502
55-E-20-100-2F2040201002
55-E-20-150-2F2070201502

55° COATED SERIES

Ball-Nose End Mills

41 standard sizes
PRONIXT 55° coated ball-nose carbide end mill dimensions
Common carbide end mill machining operations including face, shoulder, plunge, slot and profile milling
Typical Applications

3D Contouring and Curved Surfaces

For 3D contouring, curved surfaces and mold features that require smooth tool-path transitions.

Standard Dimensions

Select the order number that matches the required cutting diameter, flute length, shank diameter and overall length.

41 sizes · Unit: mm
Order No. Ød R L1 ØD OAL Flutes
55-R-R0.5-50-2F1R0.524502
55-R-R0.75-50-2F1.5R0.7534502
55-R-R1.0-50-2F2R1.044502
55-R-R1.25-50-2F2.5R1.2544502
55-R-R1.5-50A-2F3R1.563502
55-R-R1.5-75A-2F3R1.563752
55-R-R1.5-50B-2F3R1.564502
55-R-R1.75-50-2F3.5R1.7564502
55-R-R2.0-50-2F4R2.084502
55-R-R2.0-75-2F4R2.084752
55-R-R2.0-100-2F4R2.0841002
55-R-R2.5-50-2F5R2.5105502
55-R-R2.5-75-2F5R2.5105752
55-R-R3.0-50-2F6R3.0126502
55-R-R3.0-75-2F6R3.0126752
55-R-R3.0-100-2F6R3.01261002
55-R-R3.0-150-2F6R3.01261502
55-R-R4.0-60-2F8R4.0168602
55-R-R4.0-75-2F8R4.0168752
55-R-R4.0-100-2F8R4.01681002
55-R-R4.0-150-2F8R4.01681502
55-R-R4.0-200-2F8R4.01682002
55-R-R5.0-75-2F10R5.02010752
55-R-R5.0-100-2F10R5.020101002
55-R-R5.0-150-2F10R5.020101502
55-R-R5.0-200-2F10R5.020102002
55-R-R6.0-75-2F12R6.02412752
55-R-R6.0-100-2F12R6.024121002
55-R-R6.0-150-2F12R6.024121502
55-R-R6.0-200-2F12R6.024122002
55-R-R7.0-100-2F14R7.028141002
55-R-R7.0-150-2F14R7.028141502
55-R-R7.0-200-2F14R7.028142002
55-R-R8.0-100-2F16R8.032161002
55-R-R8.0-150-2F16R8.032161502
55-R-R8.0-200-2F16R8.032162002
55-R-R9.0-100-2F18R9.036181002
55-R-R9.0-150-2F18R9.036181502
55-R-R10.0-100-2F20R10.040201002
55-R-R10.0-150-2F20R10.040201502
55-R-R10.0-200-2F20R10.040202002

55° COATED SERIES

Corner-Radius End Mills

40 standard sizes
PRONIXT 55° coated corner-radius carbide end mill dimensions
Common carbide end mill machining operations including face, shoulder, plunge, slot and profile milling
Typical Applications

Profiles, Shoulders and Semi-Finishing

The reinforced corner supports profile milling, shoulder work and semi-finishing while reducing edge-chipping risk.

Standard Dimensions

Select the order number that matches the required cutting diameter, flute length, shank diameter and overall length.

40 sizes · Unit: mm
Order No. Ød R L1 ØD OAL Flutes
55-C-1.0R0.2-50-4F1R0.234504
55-C-1.5R0.2-50-4F1.5R0.244504
55-C-2.0R0.2-50-4F2R0.264504
55-C-2.0R0.5-50-4F2R0.564504
55-C-2.5R0.2-50-4F2.5R0.274504
55-C-2.5R0.5-50-4F2.5R0.574504
55-C-3.0R0.2-50A-4F3R0.283504
55-C-3.0R0.5-50A-4F3R0.583504
55-C-3.0R0.5-75A-4F3R0.5123754
55-C-3.0R0.5-50B-4F3R0.584504
55-C-4.0R0.2-50-4F4R0.2104504
55-C-4.0R0.5-50-4F4R0.5104504
55-C-4.0R1.0-50-4F4R1.0104504
55-C-4.0R0.5-75-4F4R0.5164754
55-C-4.0R0.5-100-4F4R0.52041004
55-C-4.0R1.0-100-4F4R1.02041004
55-C-5.0R0.5-50-4F5R0.5135504
55-C-5.0R1.0-50-4F5R1.0135504
55-C-5.0R0.5-75-4F5R0.5205754
55-C-6.0R0.2-50-4F6R0.2156504
55-C-6.0R0.5-50-4F6R0.5156504
55-C-6.0R1.0-50-4F6R1.0156504
55-C-6.0R0.5-75-4F6R0.5246754
55-C-6.0R0.5-100-4F6R0.53061004
55-C-6.0R1.0-100-4F6R1.03061004
55-C-8.0R0.5-60-4F8R0.5208604
55-C-8.0R1.0-60-4F8R1.0208604
55-C-8.0R0.5-75-4F8R0.5258754
55-C-8.0R0.5-100-4F8R0.53581004
55-C-8.0R1.0-100-4F8R1.03581004
55-C-10R0.5-75-4F10R0.52510754
55-C-10R1.0-75-4F10R1.02510754
55-C-10R2.0-75-4F10R2.02510754
55-C-10R0.5-100-4F10R0.540101004
55-C-10R1.0-100-4F10R1.040101004
55-C-12R0.5-75-4F12R0.53012754
55-C-12R1.0-75-4F12R1.03012754
55-C-12R2.0-75-4F12R2.03012754
55-C-12R0.5-100-4F12R0.550121004
55-C-12R1.0-100-4F12R1.050121004

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