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HSS Broaches: A Comprehensive Guide

HSS (High-Speed Steel) broaches are widely used in industrial machining for cutting internal keyways, splines, slots, and flat surfaces. Known for their hardness, wear resistance, and ability to retain sharp edges at high temperatures, HSS broaches are ideal for high-precision, high-volume manufacturing.

At Amit Broaches, we specialize in manufacturing HSS broaches for automotive, aerospace, defense, and heavy machinery industries, providing tools with long life, consistent accuracy, and superior surface finish.

HSS Broaches Manufacturer in punjab.

What Are HSS Broaches?

An HSS broach is a cutting tool made entirely of high-speed steel, a material known for:

  • Exceptional hardness

  • High wear resistance

  • Heat resistance during high-speed machining

HSS broaches can cut various profiles, including:

  • Keyways

  • Splines

  • Slots

  • Flat surfaces

Why HSS Broaches Are Preferred

  • Maintain cutting efficiency at high temperatures

  • Can machine soft and moderately hardened steels

  • Cost-effective for medium to high-volume production

  • Durable and easy to maintain

Types of HSS Broaches

Amit Broaches manufactures a variety of HSS broaches for diverse applications:

1. Keyway HSS Broaches

For precision internal keyways in gears, shafts, and pulleys.

2. Spline HSS Broaches

Used to cut internal splines in shafts and transmission components.

3. Round HSS Broaches

For enlarging or finishing internal circular holes.

4. Interspace HSS Broaches

Used for internal slots, grooves, and interspaces.

5. Surface HSS Broaches

Ideal for flat surfaces, slots, and keyways.

6. Custom HSS Broaches

Tailored as per OEM drawings for specialized applications.

Materials Used in HSS Broaches

While the base material is high-speed steel, we also provide variations based on industrial needs:

1. M2 HSS

  • General-purpose

  • Good hardness and wear resistance

2. M35 / M42 HSS

  • Higher cobalt content

  • Suitable for harder materials and high-volume production

3. Optional Coatings

  • TiN, TiCN, TiAlN for reduced friction

  • Improved heat resistance and extended tool life

Manufacturing Process of HSS Broaches

Amit Broaches ensures high-quality HSS broaches through a precision manufacturing process:

  1. Material Selection – Certified HSS bars.

  2. CNC Machining – Creates precise tooth profiles and tapers.

  3. Heat Treatment – Achieves optimal hardness and wear resistance.

  4. Grinding & Finishing – Ensures accuracy, sharp edges, and smooth surface finish.

  5. Optional Coating – Enhances cutting performance.

  6. Quality Inspection – Verifies tooth geometry, taper, straightness, and surface finish.

This process guarantees long-lasting and precise HSS broaches for all industrial applications.

Applications of HSS Broaches

HSS broaches are versatile tools used across multiple industries:

1. Automotive

  • Gear and shaft keyways

  • Transmission and drive components

2. Aerospace

  • Engine and landing gear components

  • High-precision machining applications

3. Heavy Machinery

  • Hydraulic and industrial equipment parts

  • Pulleys, couplings, and shafts

4. Industrial Equipment

  • Bearings, rollers, and flat surface machining

  • OEM machine components

5. Defense

  • Precision weapons and vehicle components requiring consistent machining

Advantages of HSS Broaches

HSS broaches offer numerous benefits over other materials and machining methods:

  •  Can maintain cutting efficiency at high speeds
  •  Excellent wear resistance and long tool life
  •  Suitable for a wide range of metals
  •  High dimensional accuracy and surface finish
  • Cost-effective for medium to high-volume production
  •  Minimal operator skill required

How to Select the Right HSS Broach

Consider the following before choosing an HSS broach:

  1. Application – Keyway, spline, slot, or flat surface

  2. Workpiece Material – Determines HSS grade (M2, M35, M42)

  3. Bore Size & Length – Influences broach length and taper

  4. Production Volume – High-volume applications benefit from coated HSS broaches

  5. Machine Type – Push or pull broach machines affect selection

Our engineering team at Amit Broaches provides expert guidance to ensure the right HSS broach for your project.

Maintenance & Re-sharpening

Proper care ensures maximum performance and tool life:

  • Inspect teeth regularly for wear

  • Re-sharpen before cutting efficiency drops

  • Use coolant during machining

  • Store broaches in protective cases

  • Avoid excessive pressure while broaching

We also provide professional re-sharpening and reconditioning services for HSS broaches.

Why Choose Amit Broaches for HSS Broaches?

  • ISO-certified manufacturing

    • CNC and precision grinding machines

    • High-quality HSS broaches with M2, M35, and M42 grades

    • Custom designs as per OEM drawings

    • 100% inspection for dimensional accuracy and surface finish

    • Competitive pricing with fast and reliable delivery

    • Technical support from expert engineers

Conclusion

HSS broaches are indispensable in precision machining for automotive, aerospace, heavy machinery, and industrial applications. They offer excellent cutting performance, durability, and surface finish across multiple material types.

At Amit Broaches, we manufacture high-quality HSS broaches tailored to your specifications, ensuring precision, consistency, and long-lasting performance.

Contact Us

Looking for premium HSS Broaches?

Call: +91-9814229208
Email: info@amitbroaches.in
Website: www.amitbroaches.in
Location: Punjab, India