Negative Rake Inserts

Negative Rake Inserts

High Productivity Milling Inserts for Efficient Material Removal: Chain Headway Negative Rake Angle Series

Negative rake angle insert series

⚙️ Negative vs. Positive Rake Angle Mechanics

If the angle between the cutting edge and the machined surface is greater than 90°, this is a positive rake angle. A negative rake angle occurs when the angle is less than 90°. Negative rake angles place significantly less stress on the cutting edge and are superior for rapid material removal compared to positive rake angles. Negative rake geometry is preferred for machining tough, hard, and brittle materials, including alloy steel, stainless steel, and titanium.

Positive and negative rake angle comparison

🔹 Negative Rake Angle Inserts Overview

Our milling cutters come in three primary ranges designed for three types of interchangeable negative rake angle inserts. Our negative rake angle inserts enable cutting and milling of hard materials to the highest industry standards. Insert corners are engineered to be indexed/rotated when worn, maximizing the usable cutting edges for significantly extended tool life.

Negative rake angle insert on milling cutter Negative rake angle insert types

🛠️ Negative Rake Angle Milling Cutters & Selection Chart

Chain Headway manufactures negative rake angle shank, screw-on, and shell milling cutters to meet any production requirement. Comparative field tests demonstrate that Chain Headway negative rake milling cutters achieve precision surface finishes while offering peak market performance and durability.

Negative rake angle milling cutter chart

📐 Negative Angle Shell Milling Cutters (NAC 45°)

Our NAC 45° Negative Shell Milling Cutters are available with two distinct insert geometries, delivering either 12 cutting edges (HN..0604) or 8 cutting edges (SN..1206):

1. NAC 45° Shell Milling Cutter with 12 Cutting Edges (HN..0604)

Ideal for semi-finish machining and rapid material removal while maintaining high-quality surface finishes. Features internal coolant channels and differential tooth pitch to suppress vibration.

NAC 45 negative shell milling cutter HN06

2. NAC 45° Shell Milling Cutter with 8 Cutting Edges (SN..1206)

Features between 4 and 12 flutes depending on cutter diameter. Designed to accept 8-edge indexable inserts to remove bulk material rapidly with greater depth of cut (Ap), ideal for heavy roughing.

NAC 45 negative shell milling cutter SN12

🚀 High Feed End Mill Cutters (NHF Series)

The NHF series of High Feed End Mill Cutters offers high productivity and machining efficiency with a maximum feed rate up to 1.2 mm/z, utilizing 4-edge LN..03 inserts across three mounting configurations:

High feed end mill cutter

Shank High Feed End Mill Cutters (2 to 5 Flutes)

Shank mounting design configured with 2–5 flutes depending on cutter diameter, engineered for rapid high-feed machining of hard alloys and cast iron.

Shank high feed end mill cutter

Screw-On High Feed End Mills (2, 3, or 4 Flutes)

Modular screw-on configuration for extended overhang and chatter resistance, delivering high performance when machining alloy steel and cast iron.

Screw-on negative rake end mill

Shell-Type High Feed End Mill Cutters (6 & 8 Flutes)

Multi-flute shell cutters designed for precision face and end milling of hard alloys with maximum material removal rates.

Shell type high feed end mill

📊 Comparative Tests Demonstrate Superior Excellence

Rigorous field trials and bench testing confirm that Chain Headway negative rake inserts deliver significant performance advantages in efficiency and tool life over competing brands:

Negative rake insert cutting comparison Negative rake insert machining test

🌟 Key Features & Benefits of Chain Headway In-House Design

  • Mounting Diversity: Shank, Shell, and Modular Screw-On configurations.
  • Versatile Flute Counts: Between 2 and 12 flutes depending on cutter diameter and application.
  • Rotatable Cutting Inserts: Multi-edge indexable inserts ranging from 4 to 12 cutting edges per insert.
  • Optimized Grades: Customized substrate and coating selections matched to specific workpiece materials.
  • In-House Expertise: Comprehensive design and manufacturing integration for rapid custom engineering and technical support.

Summary: The core business of Chain Headway is the in-house design and manufacturing of premier CNC cutting tools. Our extensive experience empowers us to match tools precisely to customer production practices for optimal productivity.

👉 Contact Us Immediately

Please contact us to discuss how our negative rake angle cutters can meet your specific machining needs, or follow us on LinkedIn / Facebook / Line for the latest updates.

【Contact Info】

📍 Headquarters: No. 232, Wuquan Rd., Qingshui Dist., Taichung City, Taiwan

📧 Email: info@chain-headway.com

🌐 Website: www.chainheadway.com