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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 Saturday, Sep 20
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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. Durable, reliable, and cost-effective, the Ingersoll Rand 307B general purpose straight die grinder is designed for porting, light weld grinding, smoothing sharp edges, deburring, and polishing. Its compact design offers exceptional maneuverability, versatility, and accessibility for difficult-to-reach spots. The 307B has a 0.25 hp motor that delivers a free speed of 28,000 rpm.Great for grinding, breaking sharp edges, deburring, porting, and polishing (view larger). The 307B's strong aluminum housing withstands tough operating conditions, and its durable ball-bearing construction improves balance, reduces vibration, and ensures a longer life. The small, lightweight design provides easy operation, and greater access to tight spots, while an integral safety-lock throttle lever prevents accidental start-up. It also features a front exhaust to help you keep work surfaces clean. What's in the Box307B Air Angle Die Grinder; 1/4-inch and 6 mm collets; two wrenches; operating instructionsAbout Ingersoll RandIngersoll Rand designs, builds, and delivers an unrivaled assortment of hard-working products and solutions. Ingersoll Rand is a multi-billion dollar global company that has built a reputation for keeping its customers up and running for over a century. From our complete compressed air systems, to our tools, pumps, material handling systems and comprehensive services, Ingersoll Rand offers the depth of knowledge, expertise, and experience to provide the best solution to meet your needs.Specifications Power Free Speed RPM Output Collet Size Average Air Consumption Air Consumption @ Load Sound Pressure / Power 0.25 hp (0.19 kW) 28,000 1/4-inch, 6mm 6 cfm (170 L/minute) 24 cfm (680 L/minute) 83/94 dBA Air Inlet NPTF In Minimum Hose Size Air Pressure Exhaust Direction Product Length Product Weight 1/4-inch 3/8-inch (10mm) 90 psi (6.2 bar) Front 5.19 inches 0.73 pounds 307B Straight Angle Die GrinderAt a GlancePowerful motor delivers 0.25 HP (0.19 kW) and 28,000 rpm free speedDurable ball-bearing constructionStrong aluminum housing Safety-lock throttle lever prevents accidental start upFront exhaust

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


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


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


Item Weight: ‎11 Ounces


Maximum Rotational Speed: ‎28000 RPM


Style: ‎307B - Air Straight


Item dimensions L x W x H: ‎5.19 x 1.34 x 2.4 inches


Minimum Speed: ‎28000 RPM


UPC: ‎636123653870 663023106113


Global Trade Identification Number: ‎13


Manufacturer: ‎Ingersoll Rand


Part Number: ‎IRC-307B


Item Weight: ‎11 ounces


Product Dimensions: ‎5.19 x 1.34 x 2.4 inches


Item model number: ‎307B


Is Discontinued By Manufacturer: ‎No


Size: ‎Metal Housing


Material: ‎Other


Wattage: ‎15 KW


Item Package Quantity: ‎1


Special Features: ‎Compact


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎1-year


Date First Available: May 22, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 20

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


  • 3 years business use and still going strong. Detailed long term review.
Style: 301B - 1/4", Right Angle
Short version: I bought two of these in Feb 2018 for use at my business. They're still going strong and work great. Long version: The HF cheapie die grinders are fine for the guy at home using them once in a blue moon, but they don't hold up at all for regular use. I wanted to get something better than the HF junk but was not willing to spend hundreds for a true "industrial" model. These have fit the bill perfectly. Both units are primarily used with roloc pads doing general metalwork. One has a 3" roloc and is primarily rough sanding. The other has a 2" roloc with some sanding but is primarily used for deburring and polishing with scotchbrite pads. For how we use them power is never an issue but speed modulation is very important. These have been great for that. Interestingly, the more expensive IR models I considered have multiple reviews complaining about a lack of speed control, but I've had no complaints with this model. The front exhaust has been a plus for our use. But, I do not have auto-oilers on our shop lines. We just manually add a few drops once in a while (probably far less frequently than we should). They are not used all day every day like a production fab shop, but they definitely see daily use. Honestly though, if you're using a tool for multiple hours every day you should be buying WAY more expensive industrial level air tools. As others have mentioned, the collets do have a tendency to stick. This hasn't really been an issue for us. We're not changing things that often and when we do they break loose with a tap after loosening the nut sufficiently. In summary, at this price point I can't imagine a better bang for the buck. They're good quality yet still very affordable. Speed modulation is great. They are compact and light weight. They have a study, solid feel to them, not loose and sloppy like the HF tools. I will definitely buy these again if we need more. ... show more
Reviewed in the United States on February 6, 2021 by Jason

  • True IR brand not a knock off
Style: 301B - 1/4", Right Angle
Replaced a broken one i had. Very happy works well. True IR equipment not a knock off.
Reviewed in the United States on July 25, 2025 by JH

  • Feels like a glove
Style: 302B - Air Angle
I am a professional mechanic, many of my pnuematic tools are Snap On brand. I have used and experienced Ingersol Rand over the years though and I believe they make solid options that are more affordable. A right angle die grinder has been on KY bucket list for quite some time, so when I saw this I got it. It feels good in my hand and functions well, it looks pretty clean as too. I will use it with plastic attachments mainly for cleaning off old gasket materials. ... show more
Reviewed in the United States on March 27, 2025 by Corey Wilson

  • Well worth the price
Style: 301B - 1/4", Right Angle
Really, really nice die grinder. Very fast, smooth, and tons of power. Bearings and gears are all tight. Add a double swivel air connector, and you will love it.
Reviewed in the United States on May 15, 2025 by Amazon Customer

  • BUY BUY BUY
Style: 301B - 1/4", Right Angle
I was pleasantly surprised with the quality of the tool. The construction of this grinder is phenomenal, but i have some gripes. Philosophy of Use - the GO TO metal prep tool. 1. Initial quality - very impressive. The tool has a very nice finish and comes in a sturdy box with manual, tools, and extra collet. It is reminiscent of some $400.00+ tools that i have purchased in the past. The finish is so good that i thought a more expensive model was sent by mistake. 2. Operation - very impressive. The tool sips on air and does not drain my 15 gallon tank too fast. High speed operation with zip disks is great. Rust flew off the metal during initial testing. Additional drawback is that you have to store the wrenches somewhere and not lose the. The space between the tool body and collet nut is narrow and I am not sure if a standard wrench will fit to tighten or loosen the nut. 3. Ergonomics - adequate. The tool is too small for my hands. I was unable to get a good grip on it to keep up with the torque on uneven surfaces. I was not wearing gloves. (ALWAYS WEAR GLOVES) so this may change with gloves. This small size could be a plus though it you are working in tight spaces. 4. Durability - unknown. i will update but based on build quality i bet it will last a lifetime. 5. Overall Customer Satisfaction - Impressive! I recommend you buy this! This tool is so nice i wanted to cuddle with it at night. ... show more
Reviewed in the United States on December 11, 2017 by Jonathan Garth

  • 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

  • Seems to use less air to run
Style: 302B - Air Angle
I’m glad that I went with brand name tool because it seems to use less air to run. Some of cheaper units consume so much air that compressor can’t keep up. I’m comparing with HF brand tools. So far in testing this IR die grinder is working perfect. I use it in restoring my older CJ Jeeps to get in corners with either 2” discs or burr grinder attachments. This is a handy tool to have when working metal or most any materials. I would recommend buying. ... show more
Reviewed in the United States on February 14, 2025 by Mark P

  • Fast shipping
Style: 301B - 1/4", Right Angle
Great price
Reviewed in the United States on August 1, 2025 by Daniel Burns

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