Carbide End Mills

HP-MAX General Machining Carbide End Mills

General-purpose solid carbide end mills for everyday milling: 2-flute ball nose, 2/4-flute flat, 4-flute radius and long-shank types, covering R0.5–R6.0 mm ball nose and D1.0–D20.0 mm flat.

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Product information

The HP-MAX general machining series is the standard solid carbide end mill line in the Koves 2025 Solid Round Cutting Tools catalog (section L02–L07). It covers six cutter types: HPB230 2-flute ball nose (R0.5–R6.0), HPR435 4-flute radius (D1.0–D12.0), HPE435 4-flute flat (D1.0–D20.0), HPEL435 4-flute long-shank flat (D3.0–D12.0), HPE235 2-flute flat (D1.0–D20.0) and HPEL235 2-flute long-shank flat (D3.0–D12.0). Model numbers encode series, cutter type, helix angle, flute count, cutting diameter, corner radius, cutting length, overall length and shank diameter.

Specifications

Cutter typesHPB230 2-flute ball nose; HPR435 4-flute radius; HPE435 4-flute flat; HPEL435 4-flute long-shank flat; HPE235 2-flute flat; HPEL235 2-flute long-shank flat
Diameter rangeR0.5–R6.0 mm ball nose; D1.0–D20.0 mm flat; D1.0–D12.0 mm radius; D3.0–D12.0 mm long-shank
Helix angle / flutes30° helix 2-flute ball nose; 35° helix 4-flute radius and flat; 35° helix 2-flute flat (per catalog model code explanation)
Example stock modelsHPB230-010020-050-S04; HPE435-060150-050-S06; HPR435-060160R0.5-050-S06; HPE235-100250-075-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.

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

Catalog page 4 · 18 sizes · code HPB230

ModelDia. (mm)Ball radius (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HPB230-010020-050-S041.00.52504
HPB230-015030-050-S041.50.753504
HPB230-020040-050-S042.014504
HPB230-030060-050-S043.01.56504
HPB230-030060-050-S063.01.56506
HPB230-040080-050-S044.028504
HPB230-040080-050-S064.028506
HPB230-050100-050-S065.02.510506
HPB230-060120-050-S066.0312506
HPB230-060120-075-S066.0312756
HPB230-060120-100-S066.03121006
HPB230-080160-060-S088.0416608
HPB230-080160-075-S088.0416758
HPB230-080160-100-S088.04161008
HPB230-100200-075-S1010.05207510
HPB230-100200-100-S1010.052010010
HPB230-120240-075-S1212.06247512
HPB230-120240-100-S1212.062410012

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

Catalog page 5 · 30 sizes · code HPR435

ModelDia. (mm)Corner radius (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HPR435-010030R0.2-050-S041R0.23504
HPR435-020060R0.2-050-S042R0.26504
HPR435-030090R0.2-050-S043R0.29504
HPR435-030090R0.5-050-S043R0.59504
HPR435-040110R0.2-050-S044R0.211504
HPR435-040110R0.5-050-S044R0.511504
HPR435-050130R0.2-050-S065R0.213506
HPR435-050130R0.5-050-S065R0.513506
HPR435-050130R1.0-050-S065R1.013506
HPR435-060160R0.2-050-S066R0.216506
HPR435-060160R0.5-050-S066R0.516506
HPR435-060160R1.0-050-S066R1.016506
HPR435-060160R0.5-075-S066R0.516756
HPR435-060160R1.0-075-S066R1.016756
HPR435-060160R0.5-100-S066R0.5161006
HPR435-060160R1.0-100-S066R1.0161006
HPR435-080200R0.5-060-S088R0.520608
HPR435-080200R1.0-060-S088R1.020608
HPR435-080200R0.5-075-S088R0.520758
HPR435-080200R1.0-075-S088R1.020758
HPR435-080200R0.5-100-S088R0.5201008
HPR435-080200R1.0-100-S088R1.0201008
HPR435-100250R0.5-075-S1010R0.5257510
HPR435-100250R1.0-075-S1010R1.0257510
HPR435-100250R0.5-100-S1010R0.52510010
HPR435-100250R1.0-100-S1010R1.02510010
HPR435-120300R0.5-075-S1212R0.5307512
HPR435-120300R1.0-075-S1212R1.0307512
HPR435-120300R0.5-100-S1212R0.53010012
HPR435-120300R1.0-100-S1212R1.03010012

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

Catalog page 5 · 16 sizes · code HPE435

ModelDia. (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HPE435-010030-050-S041.03504
HPE435-015040-050-S041.54504
HPE435-020060-050-S0426504
HPE435-025070-050-S042.57504
HPE435-030090-050-S0439504
HPE435-040120-050-S04412504
HPE435-040120-050-S06412506
HPE435-050130-050-S06513506
HPE435-060150-050-S06615506
HPE435-080200-060-S08820608
HPE435-100250-075-S1010257510
HPE435-120300-075-S1212307512
HPE435-140400-100-S14144010014
HPE435-160450-100-S16164510016
HPE435-180500-100-S18185010018
HPE435-200500-100-S20205010020

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

Catalog page 6 · 12 sizes · code HPEL435

ModelDia. (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HPEL435-030090-075-S0439754
HPEL435-030090-100-S04391004
HPEL435-040120-075-S04412754
HPEL435-040120-100-S044121004
HPEL435-050160-075-S06516756
HPEL435-050160-100-S065161006
HPEL435-060180-075-S06618756
HPEL435-060180-100-S066181006
HPEL435-080250-075-S08825758
HPEL435-080250-100-S088251008
HPEL435-100300-100-S10103010010
HPEL435-120360-100-S12123610012

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

Catalog page 6 · 16 sizes · code HPE235

ModelDia. (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HPE235-010030-050-S041.03504
HPE235-015040-050-S041.54504
HPE235-020060-050-S0426504
HPE235-025070-050-S042.57504
HPE235-030090-050-S0439504
HPE235-040120-050-S04412504
HPE235-040120-050-S06412506
HPE235-050130-050-S06513506
HPE235-060150-050-S06615506
HPE235-080200-060-S08820608
HPE235-100250-075-S1010257510
HPE235-120300-075-S1212307512
HPE235-140400-100-S14144010014
HPE235-160450-100-S16164510016
HPE235-180500-100-S18185010018
HPE235-200500-100-S20205010020

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

Catalog page 7 · 12 sizes · code HPEL235

ModelDia. (mm)Flute length (mm)Overall length (mm)Shank dia. (mm)
HPEL235-030090-075-S0439754
HPEL235-030090-100-S04391004
HPEL235-040120-075-S04412754
HPEL235-040120-100-S044121004
HPEL235-050160-075-S06516756
HPEL235-050160-100-S065161006
HPEL235-060180-075-S06618756
HPEL235-060180-100-S066181006
HPEL235-080250-075-S08825758
HPEL235-080250-100-S088251008
HPEL235-100300-100-S10103010010
HPEL235-120360-100-S12123610012

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