Professional Power and Precision - Ingersoll Rand Air Die Grinder (Model 409)

Heavy-Duty Pneumatic Tool for Metal Fabrication and Finishing

When you need precise material removal and finishing work, the Ingersoll Rand 409 delivers the reliability professionals demand. This pneumatic die grinder combines 27,000 RPM high-speed performance with the durability to handle demanding metalworking applications. Whether you're deburring welds, smoothing rough edges, or polishing surfaces, this lightweight tool keeps you working comfortably for extended periods.

Built with Ingersoll Rand's proven 4-vane motor technology and protective aluminum housing, the 409 air die grinder stands up to daily shop use while maintaining consistent power output. The compact design reaches tight spaces other tools can't access, making it essential for automotive repair, metal fabrication, and precision machining work.

Key Benefits That Make a Difference

Maximum Safety Control

Self-locking throttle lever automatically resets when released, preventing accidental startup and keeping you safe during extended grinding sessions. No more worrying about the tool running unexpectedly when you set it down.

All-Day Comfort Design

At just 1.2 pounds, this pneumatic grinder reduces hand fatigue during long projects. The ergonomic grip and balanced weight distribution let you maintain precise control without strain, even in overhead positions.

Access Tight Spaces Easily

Compact 5.87-inch length reaches confined areas where larger tools won't fit. Perfect for automotive engine work, intricate metalworking, and detailed finishing tasks that require precision in cramped quarters.

Perfect Applications for This Die Grinder

Ideal when you need professional results in demanding environments:

  • Weld cleaning and deburring on metal fabrication projects
  • Porting and polishing engine components
  • Smoothing sharp edges on machined parts
  • Surface preparation before painting or coating
  • Precision grinding in automotive and aerospace applications
  • Heavy machinery maintenance and repair work

Technical Specifications

Ingersoll Rand 409 Air Die Grinder Complete Specifications
Motor Power 0.5 HP (0.4 kW)
Maximum Speed 27,000 RPM
Weight 1.2 lbs (0.54 kg)
Overall Length 5.87 inches (149 mm)
Collet Size 1/4 inch and 6mm
Air Inlet Size 1/4 inch NPT
Minimum Hose Size 3/8 inch (10 mm)
Operating Pressure 90 PSI
Air Consumption 6 CFM
Exhaust Type Front directional

Get Professional Results with Proven Reliability

Join thousands of professionals who trust Ingersoll Rand pneumatic tools for their most demanding projects. With over 160 years of engineering excellence, you're investing in equipment that delivers consistent performance day after day.

Order your Ingersoll Rand 409 air die grinder today and experience the difference quality makes.

Frequently Asked Questions

How does this compare to electric die grinders?

This pneumatic die grinder offers several advantages over electric models: higher power-to-weight ratio, no heat buildup during extended use, and instant torque delivery. Air tools also tend to last longer in dusty environments since there's no motor to clog. The main requirement is having an air compressor capable of 6 CFM at 90 PSI.

What size air compressor do I need for this tool?

You'll need a compressor that can deliver at least 6 CFM at 90 PSI continuously. A 20-gallon tank or larger is recommended for extended use. Use a minimum 3/8-inch air hose to ensure proper airflow and maintain full power output.

Can I use this for wood working projects?

While primarily designed for metalworking, this die grinder works well for detailed wood carving, sanding in tight spaces, and precision shaping tasks. Use appropriate wood-cutting burr bits and maintain lower speeds for best results on softer materials.

What maintenance does this pneumatic tool require?

Regular maintenance is simple: add a few drops of pneumatic tool oil to the air inlet daily before use, and ensure your air supply is clean and dry. The robust vane motor design requires minimal upkeep compared to electric tools, making it ideal for busy shop environments.

Warranty & Brand Trust

Backed by Ingersoll Rand's one-year limited warranty covering defects in materials and workmanship. This air die grinder represents over 160 years of industrial tool innovation, trusted by professionals worldwide for consistent performance and long-lasting durability in demanding applications.

About the Brand

Ingersoll-Rand

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