Solid Carbide Flat End Mill for CNC Machining

A flat end mill has a flat cutting end and sharp outer corners. It produces flat-bottom features, straight side walls, スロット, ポケット, steps, and square shoulders. Many buyers also use the term square end mill for the same general end profile.

Learn more about the tool profile, 刃先, and working principles in our guide to flat end mill geometry and cutting action.Learn more about flat end mill geometry and cutting action.

We supply solid carbide flat end mills in standard metric and inch sizes. 加えて, we can evaluate custom cutting diameters, 溝の長さ, overall lengths, shank sizes, フルートのカウント, 超硬グレード, コーティング, and tolerances according to your drawing and machining requirements.

主な機能

Flat Bottom and Sharp Cutting Corners

The flat end profile creates a level bottom surface and a clear transition between the bottom and side wall. したがって, it suits components that require flat-bottom slots, square pockets, まっすぐな壁, steps, or near-90-degree shoulders.

Sharp corners carry more cutting stress than rounded corners. このため, the carbide grade, エッジの準備, コーティング, 工具オーバーハング, and cutting parameters should match the workpiece material and machining conditions.

Solid Carbide Construction

Solid carbide provides good rigidity, 耐摩耗性, and dimensional stability. It also supports precise flute geometry and sharp cutting edges.

結果として, the tool can maintain accuracy during slotting, pocketing, 側面フライス加工, 肩削り加工, そして仕上げ. しかし, a rigid machine setup and short tool overhang help reduce vibration and corner damage.

Multiple Flute Options

Different flute counts provide different balances between chip space, tool rigidity, cutting efficiency, そして表面仕上げ.

Two- and three-flute designs provide more chip space. したがって, they often suit aluminum, 銅, plastics, soft materials, deep slots, and applications that create a large volume of chips.

Four-flute designs provide more cutting edges and greater rigidity. They suit many steel, ステンレス鋼, and general CNC machining applications.

Six-flute designs can improve cutting stability and surface quality during side milling and finishing. しかし, they provide less chip space and are not usually the first choice for heavy full-width slotting.

Coated and Uncoated Options

Uncoated or polished cutting edges often suit aluminum, 銅, およびその他の非鉄材料. These options can help reduce material adhesion and built-up edges.

Coated tools can improve heat resistance and wear resistance when machining steel, ステンレス鋼, 鋳鉄, 合金鋼, and harder materials. The final coating should match the workpiece material, hardness, 冷却水の状態, および機械加工作業.

Application Guide

See the main flat end mill applications in CNC machining, including slotting, pocketing, 側面フライス加工, 肩削り加工, and entry methods.

アルミ用, soft materials, and deep slots, fewer flutes usually provide better chip evacuation. Review our 2 フルートエンドミル for these applications.

For a detailed guide to slotting, pocketing, 側面フライス加工, 肩削り加工, plunging, and entry methods, read about flat end mill applications in CNC machining.

For steel, ステンレス鋼, and general CNC milling, a four-flute design often provides a practical balance between rigidity, cutting-edge strength, and chip control. Review our 4 フルートエンドミル.

For side milling, 中仕上げ, そして仕上げ, a six-flute design can improve stability and surface quality. しかし, it offers less chip space and is not usually the first choice for heavy slotting. See our 6 フルートエンドミル.

Choosing by Workpiece Material

The final recommendation depends on the material grade, hardness, cutting width, 切込み深さ, 冷却水の状態, 機械剛性, and required surface finish. したがって, please provide the exact workpiece material and hardness when requesting a quotation.

Center-Cutting and Entry Methods

Entry capability depends on the exact end-cutting geometry and tool design. Some flat end mills support controlled plunging, ramping, or helical interpolation, while other designs require side entry or an existing hole.

Ramping or helical entry usually reduces cutting shock and improves chip evacuation. したがって, please tell us whether the tool will enter by vertical plunging, ramping, side entry, or an existing hole.

Size and Custom Options

Available options may include:

• Metric or inch cutting diameter
• 標準, short, long, or custom flute length
• 標準またはカスタムの全長
• Standard or custom shank diameter
• Neck diameter and neck length
• 2, 3, 4, 6, or custom flute count
• センターカット形状
• Standard or custom helix angle
• Sharp or prepared cutting edge
• コーティングされていない, polished, or application-specific coating
• Dimensional tolerance according to the drawing

For non-standard diameters, special lengths, custom necks, or application-specific geometry, review our カスタムエンドミル service.

Flat End Mill vs Other End Profiles

ブルノーズ vs フラットエンドミル

A flat end mill has sharp corners for square shoulders and flat-bottom features. 対照的に, a bull nose end mill keeps a flat center section but adds corner radii.

The radii strengthen the cutting corners and create a smoother transition between the bottom and side wall. しかし, they cannot produce the same sharp internal corner as a flat end profile.

Read the complete ブルノーズ vs フラットエンドミル comparison before selecting the end profile.

For parts that require stronger corners or a specified corner radius, review our ブルノーズエンドミル.

Ball Nose vs Flat End Mill

A ball nose end mill has a fully rounded cutting end for molds, dies, 曲面, and three-dimensional contours.

In comparison, a flat end profile is better suited to slots, ポケット, まっすぐな壁, flat surfaces, and square shoulders. For curved and three-dimensional machining, review our ボールノーズエンドミル.

Frequently Asked Questions

Is a flat end mill the same as a square end mill?

In many cutting tool catalogs, flat end mill and square end mill describe the same general end profile: a flat cutting end with sharp outer corners. しかし, naming may vary between manufacturers and markets.

Can a flat end mill plunge into solid material?

A center-cutting flat end mill can perform controlled plunging, ramping, or helical entry. A non-center-cutting tool cannot plunge vertically into solid material.

Which flute count should I choose?

Two or three flutes provide more chip space for aluminum, soft materials, and deep slots. Four flutes suit many steel and general machining applications, while six flutes work well for stable side milling and finishing.

Can you manufacture custom flat end mills?

はい. We can evaluate custom diameters, 溝の長さ, overall lengths, shank sizes, フルートのカウント, コーティング, and tolerances according to your drawing and machining requirements.

Send Your Flat End Mill Inquiry

Please send us your required size, フルート数, ワーク材質, そして量. If you have a drawing, feel free to attach it.

電子メール: sales@cutterbest.com

Specification Options