Left Hand Notched Grooving Insert NG3125R

$12.80
  • Sku : NG3125R
  • Cut Type : Carbide Insert
  • NG3125R INSERT NG3125R : 3RH INSERT SIZE: 0.125 GROOVE WIDTH: 0.150 DEPTH OF CUT: 0.005/.010 INSERT RADIUS
This Product Minimum Qty for Order : 10
51
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Product Overview

The NG3125R is a precision-engineered left-hand insert designed specifically for grooving and profiling tasks. Its unique notched style ensures smooth, accurate cuts perfect for detailed metalworking.

Ideal for machinists and metalworkers who demand consistent performance, this insert offers a versatile cut type with standard or double cut options. It's built to handle fine grooves with remarkable precision.

With a 0.125-inch insert size and a groove width of 0.150 inches, the NG3125R lets you achieve tight depth control, making your finishing touches easier and more reliable than ever.

Key Features

  • Left-hand notched style specifically for grooving and profiling
  • Standard cut or double cut options to fit your project needs
  • 0.125 inch insert size for precise machining
  • Groove width of 0.150 inches for tight tolerances
  • Depth of cut adjustable between 0.005 to 0.010 inches for fine control
  • Insert radius designed for better finishing quality
  • Compatible with a variety of metalworking applications
  • Durable construction for long tool life
  • Easy to install and replace in tool holders
  • Reduces chatter for improved surface finish

Specifications

  • Shape / Type: Left Hand Notched Insert
  • Cut Type: Carbide Insert
  • Insert Size: 0.125 inch
  • Groove Width: 0.150 inch
  • Depth of Cut: 0.005 to 0.010 inch
  • Insert Radius: Specified for fine profiling
  • Material Compatibility: Metalworking applications
  • Brand / Manufacturer: NG-R Series
  • Made In: USA
  • SKU / Part Number: NG3125R

Trusted NG-R Inserts for Long-Term Machining Excellence

Choosing the NG3125R insert isn't just about the specs; it's about consistent quality that your shop can count on day in and day out. Its durable construction means fewer tool changes, less downtime, and smoother workflow across your grooving tasks. Over time, this reliability translates into meaningful cost savings and less hassle scheduling replacements, keeping your operation humming efficiently.

NG-R series inserts come from a trusted heritage of innovation in cutting tool design. Supported by Burrs4Less and made in the USA, they adhere to high standards that professional metalworkers appreciate. Beyond just cutting, these inserts help you meet precision demands with confidence, while the efficient chip control design supports cleaner, safer work environments—an ongoing advantage in any busy shop.

Case Study: Real Business, Real Results

Location: St. Louis, Missouri – Upgraded grooving inserts to improve precision in automotive parts manufacturing.

Since switching to the NG3125R inserts, we've noticed tighter tolerances and smoother finishes that have reduced rework time.

Michelle Gardner – Production Manager

Boosted throughput by 30% while maintaining high-quality standards.

How the Notched Style Makes Your Grooves More Precise

Think of the notched design on this insert like the sharp teeth of a comb that neatly separate strands without tearing them. This special shape helps the tool cut clean grooves and profiles by directing material away smoothly and preventing sticking or chatter, which can ruin a finish. By channeling chips efficiently, your cuts stay accurate and your surface finish stays smooth—like a well-oiled machine.

Installation and Maintenance Guide

Setting It Up

  • Securely position the insert with the left-hand orientation aligned to your tool holder.
  • Ensure the groove width matches your project requirements.
  • Check insert seating is flush to avoid vibrations.
  • Select the correct cut type (standard or double) based on material and finish needs.
  • Verify depth of cut settings are within the 0.005 to 0.010-inch range.

Keeping It Going

  • Clean inserts regularly after use to prevent buildup.
  • Inspect for wear or chipping before each use.
  • Replace inserts promptly at the first sign of dullness.
  • Store inserts in a protective case to avoid accidental damage.
  • Use proper cutting speeds and feeds to maximize insert life.

Buying Guide: Choosing the Right NG-R Inserts

  • Not sure which cut type fits your project? Double cut options offer smoother finishes, while standard cuts provide more aggressive material removal.
  • Need to match groove widths? Check the insert groove width to ensure it suits your required groove dimensions.
  • Wondering about depth of cut? This insert supports shallow cuts between 0.005" and 0.010" – ideal for precision machining.
  • Considering material compatibility? NG-R series inserts are versatile for various metalworking needs.
  • Looking for durability? Choose inserts with proper radius design to reduce wear and extend tool life.
  • Don't forget installation orientation! Left-hand inserts like NG3125R are designed for specific tool holder setups.

Frequently Asked Questions

  • Q: What materials is the NG3125R insert suitable for?

    It's designed for a variety of metalworking applications, including steels and alloys.

  • Q: Can the insert be used for both grooving and profiling?

    Yes, the notched style works well for both grooving and profiling tasks.

  • Q: What is the difference between standard cut and double cut?

    Standard cut is more aggressive for faster material removal, while double cut provides a smoother finish.

  • Q: What is the recommended depth of cut for this insert?

    The insert supports depths between 0.005 and 0.010 inches for optimal performance.

  • Q: Is this insert compatible with right-hand tool holders?

    No, NG3125R is a left-hand insert designed specifically for left-hand tool holders.

  • Q: How do I install the insert correctly?

    Ensure it is oriented left-hand and seated firmly in your tool holder for best results.

  • Q: How to extend the life of the insert?

    Use proper speeds and feeds, keep it clean, and replace when dull or chipped.

  • Q: What is the groove width of the insert?

    The groove width is 0.150 inches, suitable for fine grooving jobs.

  • Q: How do I know when it’s time to Replace or Resharpen the burr?

    Replace or Resharpen it when you notice decreased cutting efficiency or visible wear on the cutting edges.

Why Choose Burrs4less?

Discover top reasons to pick our carbide burrs for your projects. Factory-direct quality at wholesale prices.

  • Premium Quality

    Pro-grade tungsten carbide burrs for durable, precise work.

  • Affordable Pricing

    Wholesale rates from USA manufacturer, high performance.

  • Fast & Free Shipping

    24-hour shipping, free on $100+ orders.

  • Expert Guidance

    Team assists in picking ideal burr for materials.

What Customers Are Saying

  • These inserts cut grooves so cleanly – I’m really impressed with the finish quality.

    Jason P. | CNC Operator

  • The left-hand orientation fit perfectly in my existing tooling setup.

    Linda S. | Machinist

  • Good value for precision groove applications across different metals.

    Mark T. | Shop Owner

  • The chip control is excellent—no more messy cleanups.

    Rachel L. | Fabrication Specialist

  • Reliable inserts that hold up well during long runs.

    Tom V. | Production Supervisor

  • Easy installation and consistent results every time.

    Amy K. | Tooling Engineer

Ready for Order

Don't let imprecise grooves hold your project back. Add the NG3125R insert to your toolkit today and experience cleaner cuts and dependable performance. Stock up now and keep your shop running at peak efficiency!

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