Solid Carbide Left Hand End Mills High Precision Form End Mill OEM For Steel

Left-Hand Carbide Forming End Mill for Steel High Precision Ground Tool | For Die/Mold Machining HRC 45 Capable

Introduction:

Our left-hand carbide forming end mill is engineered specifically for high-precision profile machining in tool steels and hardened materials. Featuring a unique left-hand helix design, this cutter provides superior chip evacuation and reduced vibration during demanding die/mold operations. Manufactured from micro-grain tungsten carbide and precision ground to tolerances within ±0.005mm, it delivers exceptional accuracy in complex contouring applications up to HRC 45 hardness.

Features:

✔ Left-Hand Helix Design

• 30-45° helix angle optimizes chip flow upward

• Reduces workpiece lifting during milling

• Improves surface finish in vertical machining

✔ Premium Carbide Construction

• Sub-μm grain structure (0.5-0.8μm)

• 10% cobalt binder for toughness

• Ground cutting edges (Ra 0.2μm edge finish)

✔ Precision Geometry

• 4-20mm diameters available

• Custom profiles to match part contours

• Center-cutting capable versions

✔ Hardened Steel Performance

• HRC 45 capable without coating

• Optional AlTiN coating for HRC 55+

Advantages:

▶ 40% Less Vibration vs right-hand tools in thin-wall machining

▶ Improved Chip Control prevents re-cutting in deep cavities

▶ ±0.01mm Profile Accuracy maintained over tool life

▶ 2X Tool Life vs standard end mills in P20 steel

Applications:

Injection Mold Manufacturing

• Core/cavity profiling in P20 (HRC 30-36)

• Slideway machining in H13 (HRC 48-52)

Stamping Die Production

• Blanking punch contours

• Progressive die form features

Precision Engineering

• Turbine blade root forms

• Medical device components

Detailed Pictures:

Our workshop:

New Customer Special Offers:

To help you experience our premium products, we’re excited to offer the following exclusive promotions for first-time buyers:

1.Free Test Samples

Get free samples (total value ≤ $20 USD) when you cover the international shipping cost.

Perfect for evaluating our product quality and performance risk-free.

2.$50 USD Discount on First Order

New customers can enjoy a $50 discount on the first order of $500 or more.

A great way to start our partnership with extra value!

Our advantages:

1.Advanced grinding machines: All of our grinding machines are WALTER and SAACKE brands.

2.Advanced inspection machines: We have ZOLLER, OMEGA, PG1000, etc. For inspecting each carbide tools.

3.Fast feedback: we offer 24 hours online service

4.Strict quality control system:
We strictly adhere to a three-stage inspection process for each tool:
Raw material inspection
Semi-finished product inspection after production
Final inspection after coating (pre-shipment check)

Related products:

CHANGZHOU AMG PRECISION TOOL MANUFACTURING CO., LTD. is a leading manufacturer and solution provider specializing in high-performance carbide cutting tools for precision CNC machining applications. With a strong commitment to innovation and quality, we design and produce an extensive range of standard and custom cutting tools, including carbide drill bits, end mills, reamers, and complex non-standard forming tools tailored to meet the most demanding machining challenges.