Power: The 0.5 HP 4-vane motor delivers the power you need to tackle many applications from smoothing and polishing to deburring, and its front exhaust helps keep your work surfaces clean. Durability: The durable aluminum housing protects the 409 Air Die Grinder in tough conditions. Value: The 409 Air Die Grinder delivers the power you need at a cost you can afford, making it a staple in any well-rounded tool box. Free speed - 27,000 RPM. One year warranty.
As a result OF using this Industrial and Scientific tool, I found that it is the perfect die grinder for my needs... The durability is exceptional and it has a long lifespan despite constant use. It never fails to impress me with its powerful performance making it a great investment for any professional workshop. The only con is its weight, which can be a little heavy for prolonged use without breaks. Overall, a fantastic choice for any industrial power tool user..
Pros
Durable and reliable for heavy use
Cons
May require additional attachments for some applications
Sturdy construction, good power to turn heavier wheels. I bought this specifically to spin the 3M paint removal wheel. This is very big and heavy for them to turn, but it helped gain speed quickly and maintain a decent speed under load.