{"id":2319,"date":"2026-01-12T10:02:12","date_gmt":"2026-01-12T10:02:12","guid":{"rendered":"https:\/\/hycuttingtools.com\/?post_type=product&p=2319"},"modified":"2026-09-08T15:13:17","modified_gmt":"2026-09-08T15:13:17","slug":"hrc45-4-flute-solid-carbide-ball-nose-end-mill","status":"publish","type":"product","link":"https:\/\/hycuttingtools.com\/ko\/%ec%a0%9c%ed%92%88\/hrc45-4-flute-solid-carbide-ball-nose-end-mill\/","title":{"rendered":"HRC45 4-Flute Solid Carbide Ball Nose End Mill for Steel"},"content":{"rendered":"
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HRC45 4-Flute Ball Nose End Mill Overview<\/h2>\n

This HRC45 4-flute solid carbide ball nose end mill is a non-standard, made-to-order configuration for 3D contouring, cavity machining and profile finishing in carbon steel, alloy steel and mold steel. Compared with a conventional 2-flute ball nose cutter, the 4-flute design provides more cutting edges per revolution and a stronger core, supporting higher feed potential and stable finishing when chip space is not the primary requirement. Ball radius, cutting diameter, flute length, reach and coating are confirmed for each order.<\/p>\n

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End Profile<\/span>Ball Nose \/ Full Radius<\/span><\/div>\n
Flute Design<\/span>\ud50c\ub8e8\ud2b8 4\uac1c<\/span><\/div>\n
Supply Type<\/span>Non-Standard \/ Made to Order<\/span><\/div>\n
\ucf54\ud305<\/span>Black AlTiN<\/span><\/div>\n<\/div>\n<\/section>\n

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Key Configuration<\/h3>\n
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Full-Radius Ball Nose<\/h4>\n

Maintains progressive cutting contact on curved surfaces, cavities, fillets and complex 3D profiles.<\/p>\n<\/div>\n

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Application-Specific 4-Flute Geometry<\/h4>\n

Four cutting edges increase tooth engagement and strengthen the core for controlled semi-finishing and finishing in steel.<\/p>\n<\/div>\n

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Black AlTiN Coating<\/h4>\n

Provides thermal and wear protection for machining carbon steel, alloy steel and compatible pre-hardened steel.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Key Product Advantages<\/h3>\n
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R<\/div>\n

Smooth 3D Toolpaths<\/h4>\n

The ball profile supports continuous contact when following curved and free-form surfaces.<\/p>\n<\/div>\n

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4F<\/div>\n

More Cutting Edges<\/h4>\n

Four flutes provide more cutting contacts per revolution for productive side cutting and surface finishing.<\/p>\n<\/div>\n

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45<\/div>\n

Stronger Core Section<\/h4>\n

Reduced flute space allows a larger core section, supporting rigidity when the tool and setup are correctly matched.<\/p>\n<\/div>\n

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Al<\/div>\n

Coated Edge Protection<\/h4>\n

Black AlTiN helps protect the cutting edge against heat and abrasive wear during steel milling.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Milling Operations<\/h3>\n
3D Contouring<\/span>
\nMold Cavity Milling<\/span>
\nProfile Milling<\/span>
\nSemi-Finishing<\/span>
\nSurface Finishing<\/span><\/div>\n
4-Flute Application Note:<\/strong> The additional cutting edges reduce chip-gullet volume compared with a 2-flute ball nose end mill. Use this configuration for controlled semi-finishing and finishing, and confirm chip evacuation before applying it to deep cavities or heavy full-width cutting.<\/div>\n<\/section>\n

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Workpiece Material Compatibility<\/h3>\n
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MATERIAL GROUP<\/th>\nEXAMPLES<\/th>\nAPPLICATION LEVEL<\/th>\n<\/tr>\n<\/thead>\n
P Steel<\/td>\nCarbon steel and low-alloy steel<\/td>\nPrimary application<\/td>\n<\/tr>\n
P Tool & Mold Steel<\/td>\nCommon mold and die steels within the hardness range<\/td>\nConfirm grade and hardness<\/td>\n<\/tr>\n
H Pre-Hardened Steel<\/td>\nSelected pre-hardened steel up to HRC45<\/td>\nApplication review required<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Material Note:<\/strong> This black-coated configuration is positioned for steel. For aluminum and other non-ferrous materials, select a sharp polished or application-specific low-friction ball nose end mill.<\/div>\n<\/section>\n

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Product Details & Milling Demonstration<\/h3>\n

Detailed product views and a machining demonstration of the HRC45 4-flute black AlTiN-coated solid carbide ball nose end mill.<\/p>\n

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\"Custom

Non-Standard 4-Flute Ball Nose End Mill Configuration<\/div>\n<\/div>\n
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\"Four-flute

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