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Ingersoll Rand 307B 1/4” Air Die Grinder, Straight, 28,000 RPM, 0.25 HP, Ball Bearing Construction, Safety Lock, Aluminum Housing, Lightweight Power Tool

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Availability: In Stock.
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Arrives Sunday, Jun 21
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Style: 307B - Air Straight


Features

  • POWERFUL AIR GRINDER: Invest in quality with the Ingersoll Rand 307B straight-angle Air Die Grinder. This grinder tool boasts a powerful vane motor delivering 0.25 hp at 28,000 rpm. Its ideal for grinding, deburring, and polishing tasks.
  • CONVENIENT LIGHTWEIGHT TOOL: This straight die grinder features a light, compact design to fit into tight spaces. It includes 2 wrenches and 1/4" and 6 mm collets for compatibility with various attachments.
  • HEAVY-DUTY CONSTRUCTION: This tool is built with ball-bearing construction and a robust aluminum housing for balance, reduced vibration, and equipment longevity, even in tough conditions. It has a built-in lubricating wick that increases gear life.
  • SAFETY FEATURES: Get power and safety in one package with this handheld air grinder tool. It features an integral safety-lock throttle lever to prevent accidental system start-up and a front exhaust that helps keep your work surface clean.
  • UNLOCK YOUR POTENTIAL: For 160 years, Ingersoll Rand has been committed to making life better by creating innovative, durable, and quality tools. Our legacy is reflected in every product we make.

Description

The Ingersoll Rand 307B Air Die Grinder is a reliable workhorse designed for versatile applications. Whether it’s porting, weld grinding, deburring, or polishing, this grinder is built to deliver exceptional performance wherever it’s needed. Its compact design allows for easy maneuverability and access to tight spots, making it a valuable addition to any tool kit. It comes with 2 wrenches and 1/4" and 6 mm collets for compatibility with a variety of attachments. It’s powered by a robust motor that delivers 0.25 hp (0.19 kW) at 28,000 rpm, so it packs a punch while remaining lightweight and easy to handle. Constructed with durability in mind, the 307B features ball-bearing construction for improved balance, reduced vibration, and extended tool life. Its strong aluminum housing can withstand harsh operating conditions, ensuring reliability and longevity. Plus, its integral safety-lock throttle lever prevents accidental start-ups for user safety, and its front exhaust design helps keep your work surface clean. Whether you’re a professional mechanic, a metalworker, or a DIY enthusiast, the Ingersoll Rand 307B Air Die Grinder is the perfect tool for tackling a wide range of tasks with ease and efficiency. Ingersoll Rand is a trusted name in industrial innovation and excellence. With a rich legacy spanning over a century, Ingersoll Rand has continuously pushed the boundaries of engineering to deliver cutting-edge solutions that power progress across industries worldwide.

Brand: Ingersoll Rand


Power Source: pneumatic-powered


Recommended Uses For Product: Grinding, Deburring, Polishing, Porting, Weld Grinding, Smoothing Edges, Sanding


Color: Chrome


Special Feature: Compact


Power Source: pneumatic-powered


Recommended Uses For Product: Grinding, Deburring, Polishing, Porting, Weld Grinding, Smoothing Edges, Sanding


Other Special Features of the Product: Compact


Maximum Rotational Speed: 28000 RPM


Minimum Speed: 28000 RPM


Color: Chrome


Style Name: 307B - Air Straight


Item Weight: 11 Ounces


Item Dimensions: 5.19 x 1.34 x 2.4 inches


Brand Name: Ingersoll Rand


Included Components: Tool, (2) Wrenches, 6mm Collet and Manuals


Model Number: 307B


UPC: 636123653870 663023106113


Global Trade Identification Number: 13


Manufacturer Warranty Description: 1-year


Manufacturer Part Number: IRC-307B


Manufacturer: Ingersoll Rand


Item Type Name: Die Grinder


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Updated from 4* to 5* Nice little tool. But it is not perfect.
Style: 307B - Air Straight
update January 2020. I still regularly use this die grinder and it works great. I did end up filing down the backside of the safety so that I can semi engage the trigger without having to flip the lever. This is still a good tool, all I do is drip a few drops of oil in it every once in a while. I still have difficulty removing bits but that is not a dealbreaker for me. Original review April 2017. This is very small and works well. I did have a few issues with it. The safety on the handle makes it very awkward to use. Also I have had trouble removing bits from this tool. I usually have to get a pair of pliers to pull out the bit, I don’t think it should be grabbing quite that tight. Now that I am thinking about it the two wrench system to change bits is a little frustrating as well. I don’t know if another manufacturer has solve that issue, but there is definitely room for improvement. ... show more
Reviewed in the United States on July 24, 2017 by Tom & Emily

  • Best in the market
Style: 307B - Air Straight
Definitely one of the best air tools out there for the price and reliability.
Reviewed in the United States on October 11, 2024 by Alan Bobadilla

  • Ingersol Rand 307B Die Grinder
Style: 307B - Air Straight
Ingersol 307B Straight Air Die Grinder is much more compact than I expected. It's physical size is as small or smaller than my Dremmel tool. I purchased this unit to port match an aluminum intake manifold to a set of cylinder heads and find this tool the perfect choice (very small, light and 28K RPM speed). Unit comes with two collets with the larger accepting 1/4" standard diameter tool shafts and another (provided loose in baggie) is marked 6mm. Two flat wrenches are provided for tightening bits in the collets. You will need to install an air fitting (purchased separately) to match your air hose fitting. This tool appears to be a made very high quality and with normal care, should last a lifetime. Having quality tools helps me do the best job possible. ... show more
Reviewed in the United States on August 19, 2017 by captain moore

  • Good Enough.
Style: 307B - Air Straight
Good quality. Not as much power as I would have liked, but good value for the money. The adjustment wrenches were not the right size so I had to sand them down to size. The box did have metal dust inside it, and on the grinder. Not sure if it was used or not, but still works fine reguardless.
Reviewed in the United States on January 18, 2026 by OG Bobby

  • Worked great, but I returned it
Style: 307B - Air Straight
It's a nice good quality built tool. I got the aluminum housing version which I prefer due to being oldschool I guess, no other reason. I returned it because I didn't realize how small it was. I needed something more powerful so ended up going with the edge series.
Reviewed in the United States on January 29, 2025 by Dan

  • Mighty lil guy
Style: 307B - Air Straight
Great grinder small and lightweight good for tight spots
Reviewed in the United States on December 14, 2025 by duck

  • Great tool
Style: 307B - Air Straight
I am impressed with this tool. I use it to debur surfaces and clean them for welding. This is the perfect size for getting inside 3" tubing. The collet tightens and doesn't let the shaft of your mandrel slip. The tool is lightweight and powerful.
Reviewed in the United States on December 24, 2019 by HandyDan

  • seems like a good tool
Style: 307B - Air Straight
I just received this and haven't used it yet.
Reviewed in the United States on July 12, 2025 by Amazon Customer

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