4-Flute Flat End Mill for HRC58–60 — Specifications, Grade and Applications
September 20, 2026 · Exactalloy Technical Team
4-Flute Flat End Mill for HRC58–60 is a flat end mill supplied by Exactalloy for production CNC machining in HRC58.
Quick answer: 4-Flute Flat End Mill for HRC58–60 delivers consistent geometry and coating adhesion batch to batch. Recommended for steel, stainless steel, cast iron and aluminium, with dimensional and inspection reports available on request.
Design and geometry
Ground from a single ultra-fine grain carbide blank with a controlled edge preparation that resists chipping while staying sharp.
Working range
Rated HRC58 for hardened materials. Suitable for roughing through finishing depending on depth of cut and radial engagement.
Quality control
Dimensional check, run-out check and coating thickness verification are performed per batch.
Availability
Held in stock in standard sizes with made-to-order sizes on request.
Specifications at a glance
| Property | Value |
|---|---|
| Product type | flat end mill |
| Material | Solid tungsten carbide, ultra-fine grain |
| Hardness range | HRC58 |
| Coating | PVD TiAlN / AlTiN / AlCrN (selectable) |
| Tolerance | h6 shank, edge run-out ≤ 0.01 mm |
Frequently asked questions
Is this tool in stock?
Standard sizes are stocked; confirm the exact size on the product page or with the sales desk.
Can the coating be changed?
Yes — coating can be specified per your material and operation.
Do you provide an inspection report?
Yes, batch inspection and material certificates are available on request.
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Get a quote and technical support
Exactalloy supplies 4-Flute Flat End Mill for HRC58–60 from stock, made-to-order and reground. Send your drawing or specification for a quotation and lead time within 24 hours. Contact us or browse all products.