--- product_id: 279396908 title: "308B Air Straight Die Grinder, 1/4\", 25,000 RPM, 0.33 Hp, Ball Bearing Construction, Safety Lock, Composite Housing, Lightweight Power Tool, Gray" brand: "ingersoll rand" price: "$185.03" currency: USD in_stock: true reviews_count: 6 category: "Ingersoll Rand" url: https://www.desertcart.us/products/279396908-308b-air-straight-die-grinder-1-4-25-000-rpm store_origin: US region: United States of America --- # 0.33 HP motor power 25,000 RPM high-speed rotation Ball-bearing construction for durability 308B Air Straight Die Grinder, 1/4", 25,000 RPM, 0.33 Hp, Ball Bearing Construction, Safety Lock, Composite Housing, Lightweight Power Tool, Gray **Brand:** ingersoll rand **Price:** $185.03 **Availability:** ✅ In Stock ## Summary > ⚙️ Grind smarter, not harder — power and precision in your hands! ## Quick Answers - **What is this?** 308B Air Straight Die Grinder, 1/4", 25,000 RPM, 0.33 Hp, Ball Bearing Construction, Safety Lock, Composite Housing, Lightweight Power Tool, Gray by ingersoll rand - **How much does it cost?** $185.03 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/279396908-308b-air-straight-die-grinder-1-4-25-000-rpm) ## Best For - ingersoll rand enthusiasts ## Why This Product - Trusted ingersoll rand brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Integral safety-lock throttle lever prevents accidental startups, keeping your workspace secure. - • **Built to Last:** Durable ball-bearing construction reduces vibration and extends tool life under tough conditions. - • **Exhaust Innovation:** Rear exhaust and piped-away exhaust compatibility keep your workspace clean and comfortable. - • **Power Meets Precision:** Turbocharged 0.33 HP motor delivers 25,000 RPM for flawless, high-speed grinding. - • **Ergonomic Lightweight Design:** At just 1 lb with composite housing, enjoy fatigue-free operation and superior comfort all day. ## Overview The Ingersoll Rand 308B Air Straight Die Grinder combines a powerful 0.33 HP motor with a blistering 25,000 RPM speed, housed in a lightweight, ergonomic composite frame. Designed for professionals who demand durability and comfort, it features ball-bearing construction for reduced vibration and longer life, a safety-lock throttle for secure operation, and rear exhaust to keep your workspace clear. Perfect for precision grinding, polishing, and deburring, this tool is a must-have for the modern craftsman. ## Description Lightweight and durable for ultimate performance, the 308B die grinder is the perfect choice. These powerful grinders feature a composite grip for superior ergonomics and comfort, and can be used in various applications including porting, weld breaking, de-burring, polishing and grinding. Also available in the 308BK kit which includes 4 burrs. Review: Good stuff - Thanks good stuff Review: Fonctionne très bien et d'une bonne grosseur . ## Features - POWER: Motor delivers 0.33 HP (0.25 kW) and 25,000 rpm free speed. - Piped Away Exhaust Ready: These die grinders are compatible with “piped away” exhaust kits, so you can transfer exhaust away from you and your workspace. - DURABLE: Ball-bearing construction improves balance, reduces vibration, and ensures a longer life - RELIABILITY: Integral safety-lock throttle lever prevents accidental start up. - LIGHTWEIGHT: At only 1lb., the ergonomic composite housing protects this tool from cold air and offers greater operator comfort..Built-in lubricating wick increases angle gear life.Rear exhaust directs air away from the operator.Powerful motor delivers 0.33 HP (0.25 kW) and 25,000 rpm free speed.Durable ball-bearing construction improves balance, reduces vibration, and ensures a longer life.Strong aluminum housing withstands tough operating conditions. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008JYRDFE | | ASIN | B008JYRDFE | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #77,354 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #191 in Power Grinders | | Color | Gray | | Customer Reviews | 4.5 4.5 out of 5 stars (2,667) | | Customer reviews | 4.5 4.5 out of 5 stars (2,667) | | Date First Available | 1 January 2024 | | Date First Available | 1 January 2024 | | Department | unisex-adult | | Finish | Composite, Aluminum | | Included components | 308B Pneumatic Straight Die Grinder, 1/4 inch and 6 mm Collets, Two Wrenches. | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 463 g | | Item model number | 308B | | Item model number | 308B | | Item thickness | 1 Inches | | Manufacturer | Ingersoll Rand | | Manufacturer | Ingersoll Rand | | Material | Composite/Alu | | Number Of Pieces | 1 | | Part number | 308B | | Power source type | Air Powered | | Product Dimensions | 26.01 x 20.17 x 10.01 cm; 462.66 g | | Product Dimensions | 26.01 x 20.17 x 10.01 cm; 462.66 g | | Size | Composite Housing | | Special Features | Variable Speed | | Style | 308B - Composite Air Straight Die Grinder | ## Product Details - **Brand:** Ingersoll Rand - **Colour:** Gray - **Power source:** Air Powered - **Recommended uses for product:** Deburring, Polishing, Grinding, Weld Breaking, Porting - **Special features:** Variable Speed ## Images ![308B Air Straight Die Grinder, 1/4", 25,000 RPM, 0.33 Hp, Ball Bearing Construction, Safety Lock, Composite Housing, Lightweight Power Tool, Gray - Image 1](https://m.media-amazon.com/images/I/415uQw+UmlL.jpg) ## Questions & Answers **Q: What drive is it?** A: This tool comes with 1/4" and 6mm collets. **Q: what size of cutting wheel does it use ?** A: I wouldn't go any larger than 3 inch **Q: Can you control the spped with the trigger?** A: Yes you can, expect it to be a bit stiff and hard to control modulation at first but it does become better after the first few uses. **Q: As a long time ir user, remove the picture of the case and burrs if the advertisement doesn't include them; it's misleading. where's that product?** A: Good Afternoon Robert, this looks to be a clerical error from Amazon with the pictures that are uploaded. The kit part number is 308BK is the kit. Thank you! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good stuff *by W***I on 25 October 2025* Thanks good stuff ### ⭐⭐⭐⭐⭐ Review *by S***N on 1 October 2024* Fonctionne très bien et d'une bonne grosseur . ### ⭐⭐⭐⭐⭐ Review *by B***L on 26 June 2022* Car fix ## Frequently Bought Together - Ingersoll Rand 308B Air Straight Die Grinder - Sworker 10Pcs Carbide Burr Set 1/4 Shank w/Clear Box Max Head Dia 10mm Die Grinder Bits Rotary Tools Attachment Kit Rasp Accessories Metal Wood Stone Steel Grinding Deburring Cutting Porting Carving - Weiler 56089 Die Grinder Cut-Off Wheel and Mandrel Kit including 56490 Mandrel and 3-Inch x 1/16" Wolverine T1 Thin Wheels, A36T, 3/8" AH (1 Mandrel and 10 Cutting Discs) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/279396908-308b-air-straight-die-grinder-1-4-25-000-rpm](https://www.desertcart.us/products/279396908-308b-air-straight-die-grinder-1-4-25-000-rpm) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-20*