Carbide End Mills

HM-MAX Multi-Function Carbide End Mills

Multi-function solid carbide end mills including 6-flute finishing and 4-flute roughing types; ball nose R0.5–R6.0 mm and flat/radius D1.0–D20.0 mm.

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Product information

The HM-MAX multi-function machining series (catalog L08–L17) extends the standard line with 6-flute finishing end mills (HME645, HMEL645, D6.0–D20.0) and 4-flute roughing end mills (HMRE430, HMREL430, D3.0–D20.0), alongside 2-flute ball nose HMB230, 4-flute radius HMR435, 4-flute flat HME435/HMEL435 and 2-flute flat HME235/HMEL235.

Specifications

Cutter typesHMB230 2-flute ball nose; HMR435 4-flute radius; HME435 4-flute flat; HMEL435 4-flute long-shank flat; HME235 2-flute flat; HMEL235 2-flute long-shank flat; HME645 / HMEL645 6-flute flat; HMRE430 / HMREL430 4-flute roughing
Diameter rangeR0.5–R6.0 mm ball nose; D1.0–D20.0 mm flat; D1.0–D12.0 mm radius; D6.0–D20.0 mm 6-flute; D3.0–D20.0 mm roughing
Example stock modelsHME435-060160-050-S06; HMRE430-080200-060-S08; HME645-100300-075-S10

Available sizes

Model codes and dimensions reproduced from the Koves 2025 Solid Round Cutting Tools catalog. Stock items are listed in the catalog, not confirmed live — ask us for current availability.

HM-MAX Ball End Mill, 2-Flute, 30° helix

Catalog page 7 · 16 sizes · code HMB230

ModelDia. (mm)Ball radius (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HMB230-010020-050-S0410.52504
HMB230-020040-050-S0421.04504
HMB230-030060-050-S0431.56504
HMB230-040080-050-S0442.08506
HMB230-040080-050-S0642.08506
HMB230-050100-050-S0652.510506
HMB230-060120-050-S0663.012506
HMB230-060120-075-S0663.012756
HMB230-060120-100-S0663.0121006
HMB230-080160-060-S0884.016608
HMB230-080160-075-S0884.016758
HMB230-080160-100-S0884.0161008
HMB230-100200-075-S10105.0207510
HMB230-100200-100-S10105.02010010
HMB230-120240-075-S12126.0247512
HMB230-120240-100-S12126.02410012

HM-MAX Flat End Mill, 4-Flute, 35° helix

Catalog page 8 · 16 sizes · code HME435

ModelDia. (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HME435-010030-050-S041.03504
HME435-015040-050-S041.54504
HME435-020060-050-S0426504
HME435-025070-050-S042.57504
HME435-030090-050-S0339503
HME435-030090-050-S0439504
HME435-040110-050-S04411504
HME435-050130-050-S06513506
HME435-060160-050-S06616506
HME435-080200-060-S08820608
HME435-100250-075-S1010257510
HME435-120300-075-S1212307512
HME435-140350-100-S14143510014
HME435-160400-100-S16164010016
HME435-180450-100-S18184510018
HME435-200450-100-S20204510020

HM-MAX Radius End Mill, 4-Flute, 35° helix

Catalog page 8 · 27 sizes · code HMR435

ModelDia. (mm)Corner radius (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HMR435-010030R0.2-050-S0410.23504
HMR435-020060R0.2-050-S0420.26504
HMR435-030080R0.2-050-S0430.28504
HMR435-030080R0.5-050-S0430.58504
HMR435-040110R0.2-050-S0440.211504
HMR435-040110R0.5-050-S0440.511504
HMR435-060160R0.2-050-S0660.216506
HMR435-060160R0.5-050-S0660.516506
HMR435-060160R1.0-050-S066116506
HMR435-060160R0.5-075-S0660.516756
HMR435-060160R1.0-075-S066116756
HMR435-060160R0.5-100-S0660.5161006
HMR435-060160R1.0-100-S0661161006
HMR435-080200R0.5-060-S0880.520608
HMR435-080200R1.0-060-S088120608
HMR435-080200R0.5-075-S0880.520758
HMR435-080200R1.0-075-S088120758
HMR435-080200R0.5-100-S0880.5201008
HMR435-080200R1.0-100-S0881201008
HMR435-100250R0.5-075-S10100.5257510
HMR435-100250R0.5-075-S10101257510
HMR435-100250R0.5-100-S10100.52510010
HMR435-100250R1.0-100-S101012510010
HMR435-120300R0.5-075-S12120.5307512
HMR435-120300R1.0-075-S12121307512
HMR435-120300R0.5-100-S12120.53010012
HMR435-120300R1.0-100-S121213010012

HM-MAX Flat End Mill, 2-Flute, 35° helix

Catalog page 9 · 16 sizes · code HME235

ModelDia. (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HME235-010030-050-S041.03504
HME235-015040-050-S041.54504
HME235-020060-050-S0426504
HME235-025070-050-S042.57504
HME235-030090-050-S0339503
HME235-030090-050-S0439504
HME235-040110-050-S04411504
HME235-050130-050-S06513506
HME235-060160-050-S06616506
HME235-080200-060-S08820608
HME235-100250-075-S1010257510
HME235-120300-075-S1212307512
HME235-140350-100-S14143510014
HME235-160400-100-S16164010016
HME235-180450-100-S18184510018
HME235-200450-100-S20204510020

HM-MAX Long Shank Flat End Mill, 4-Flute, 35° helix

Catalog page 9 · 12 sizes · code HMEL435

ModelDia. (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HMEL435-030090-075-S0439754
HMEL435-040120-075-S04412754
HMEL435-030120-100-S043121004
HMEL435-040160-100-S044161004
HMEL435-050150-075-S06515756
HMEL435-060180-075-S06618756
HMEL435-050200-100-S065201006
HMEL435-060240-100-S066241006
HMEL435-080240-075-S08824758
HMEL435-080320-100-S088321008
HMEL435-100400-100-S10104010010
HMEL435-120480-100-S12124810012

HM-MAX Long Shank Flat End Mill, 2-Flute, 35° helix

Catalog page 10 · 12 sizes · code HMEL235

ModelDia. (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HMEL235-030090-075-S0439754
HMEL235-040120-075-S04412754
HMEL235-030120-100-S043121004
HMEL235-040160-100-S044161004
HMEL235-050150-075-S06515756
HMEL235-060180-075-S06618756
HMEL235-050200-100-S065201006
HMEL235-060240-100-S066241006
HMEL235-080240-075-S08824758
HMEL235-080320-100-S088321008
HMEL235-100400-100-S10104010010
HMEL235-120480-100-S12124810012

HM-MAX Flat End Mill, 6-Flute, 45° helix

Catalog page 10 · 6 sizes · code HME645

ModelDia. (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HME645-060180-060-S06618506
HME645-080200-060-S08820608
HME645-100300-075-S1010307510
HME645-120320-075-S1212327512
HME645-160400-100-S16164010016
HME645-200450-100-S20204510020

HM-MAX Extended Reach Flat End Mill, 6-Flute, 45° helix

Catalog page 11 · 8 sizes · code HMEL645

ModelDia. (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HMEL645-606240-075-S0660.624756
HMEL645-060240-100-S066241006
HMEL645-080320-075-S08832758
HMEL645-080320-100-S088321008
HMEL645-100450-100-S10104510010
HMEL645-120450-100-S12124510012
HMEL645-160640-150-S16166415016
HMEL645-200750-150-S20207515020

HM-MAX Roughing End Mill, 4-Flute, 30° helix

Catalog page 11 · 8 sizes · code HMRE430

ModelDia. (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HMRE430-030080-050-S0438504
HMRE430-040100-050-S04410504
HMRE430-060150-060-S06615606
HMRE430-080200-060-S08820608
HMRE430-100250-075-S1010257510
HMRE430-120300-075-S1212307512
HMRE430-160400-100-S16164010016
HMRE430-200500-100-S20205010020

HM-MAX Extended Reach Roughing End Mill, 4-Flute, 30° helix

Catalog page 12 · 6 sizes · code HMREL430

ModelDia. (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HMREL430-060240-100-S066241006
HMREL430-080320-100-S088321008
HMREL430-100400-100-S10104010010
HMREL430-120480-100-S12124810012
HMREL430-160650-150-S16166515016
HMREL430-200800-150-S20208015020

How to read the model number

The catalog page “Detailed explanation of the model” reads a code left to right as series, cutter type, length mark, flutes, helix angle, cutting diameter, corner radius, cutting length, overall length and shank diameter. The original diagram is reproduced here:

Koves model-number key: how a carbide end mill code is read — series (HP/HM/HY/HS/HR/ALU/DIA/CO-MAX), cutter type (B/E/R/RE), length mark (L), flutes, helix angle, cutting diameter, corner radius, cutting length, overall length and shank diameter
Original “Detailed explanation of the model”, catalog folio L01 (2025).

Source: source-excerpts/catalog-2025-pages-3-4-milling-contents-model-code.txt — Original PDF page 4