--- product_id: 13454767 title: "CP9121BR - Air Grinder Tool, Welder, Woodworking, Automotive Car Detailing, Stainless Steel Polisher, Heavy Duty, Right Angle Grinder, 5 Inch (125 mm), 0.8 HP / 600 W - 12000 RPM" brand: "chicago pneumatic" price: "₹ 52471" currency: INR in_stock: true reviews_count: 8 category: "Chicago Pneumatic" url: https://www.desertcart.in/products/13454767-cp9121br-air-grinder-tool-welder-woodworking-automotive-car-detailing-stainless store_origin: IN region: India --- # 12,000 RPM max speed 0.8 HP motor power Durable all-metal housing CP9121BR - Air Grinder Tool, Welder, Woodworking, Automotive Car Detailing, Stainless Steel Polisher, Heavy Duty, Right Angle Grinder, 5 Inch (125 mm), 0.8 HP / 600 W - 12000 RPM **Brand:** chicago pneumatic **Price:** ₹ 52471 **Availability:** ✅ In Stock ## Summary > ⚡ Grind smarter, not harder — the pro’s choice for power and precision! ## Quick Answers - **What is this?** CP9121BR - Air Grinder Tool, Welder, Woodworking, Automotive Car Detailing, Stainless Steel Polisher, Heavy Duty, Right Angle Grinder, 5 Inch (125 mm), 0.8 HP / 600 W - 12000 RPM by chicago pneumatic - **How much does it cost?** ₹ 52471 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/13454767-cp9121br-air-grinder-tool-welder-woodworking-automotive-car-detailing-stainless) ## Best For - chicago pneumatic enthusiasts ## Why This Product - Trusted chicago pneumatic brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Rugged all-metal (powder-coated aluminum) housing ensures unmatched durability over plastic alternatives. - • **Quiet Confidence:** Low noise operation at 85 dB(A) keeps your workspace productive without the distraction. - • **Ergonomic Mastery:** Lightweight aluminum alloy body with an ergonomic grip designed for all-day comfort and control. - • **Power Meets Precision:** 0.8 HP motor delivers relentless 12,000 RPM for heavy-duty grinding and cutting. - • **Versatility Unleashed:** Adjustable guard and compatibility with 4-5 inch wheels make it perfect for metal, wood, and plastic tasks. ## Overview The CP9121BR Air Angle Grinder by Chicago Pneumatic combines a powerful 0.8 HP pneumatic motor with a high-speed 12,000 RPM output, housed in a rugged, lightweight aluminum alloy body. Designed for professional-grade grinding, cutting, and sanding, it features an ergonomic grip, low noise levels, and a rear exhaust system for durability and operator comfort. Ideal for maintenance pros working in tight spaces, this tool offers superior build quality and versatility unmatched by plastic-bodied competitors. ## Description Product Description Designed for general maintenance applications, this angle grinder series offers efficiency with its power of 0.8 HP (600W) and high durability with its helical bevel gear design & aluminum alloy housing. The range consist of 7 models: 2x 4 Inch wheel (3/8 Inch- 24 spindle thread), 2x 4.5 Inch wheel (3/8 Inch- 24 & 5/8 Inch- 11 spindle thread) and 3x 5 Inch wheel (M14 & 3/8 Inch- 24 & 5/8 Inch- 11 spindle thread). From the Manufacturer The CP9121BR is the perfect choice for high performance finishing. This 5-Inch grinder comes with an aluminum alloy housing that is rugged yet lightweight for maximum operator comfort. Spiral bevel gearing in angle head provides extended life and smooth low vibration. Powerful .8 hp high performance motor for fast, efficient grinding in tight quarters. Adjustable protective guard allows access into tight spaces. Applications- weld preparation and smoothing, rust removal, debarring and blending of steel. cast iron and aluminum. Spindle size; 5/8;11; 4-Inch through 5-Inch wheel size; free speed: 12000 RPM; average air consumption: 13 cfm; air inlet thread: 1/4-Inch NPTF; minimum hose size: 3/8-Inch; sound dBA: 85; length: 9.3-Inch; weight: 4.2 pounds. Review: better than IR 3445, all METAL housing - I bought this to replace my Ingersoll Rand 3445 air angle grinder. What's not clear in the descriptions is: Is the red body of the CP9121 plastic or metal? I glad to report IT IS DEFINITELY METAL. Very likely powder-coated aluminum. (Of course I don't want to scratch it and see for sure.) This unit has the rugged build I was looking for. I noticed what looks like this exact same grinder, same color, under different branding and very close to the same price elsewhere, but sorry, I forgot the exact brands. Note: If money is no object you should also be looking at the Ingersoll Rand G2 series grinders, which are supposed to be super industrial duty. Another competing product is the IR 3445. I had the first version of the IR 3445 (the non-MAX version) and it broke within a year. (I use these for removing mill scale from structural steel.) Although I am partial to IR air tools, I will never get a "composite construction" (read metal/plastic) air tool again. One drop and the housing cracked at the aluminum/plastic joint, and IR doesn't sell the plastic replacement part separately. You have to buy a whole new housing which costs $100 minimum. This (the CP9121) seems a little more noisy than the my previous grinder, but heck, I'm always wearing ear muffs anyways. I will gladly trade the slight noise difference for something durable. Review: Top quality - Works great just keep it oiled. ## Features - Powerful and efficient: The CP9121BR Air Angle Grinder is equipped with a 0.8 HP motor that delivers plenty of strength with 12,000 RPM of rotational speed, making it ideal for heavy-duty grinding and cutting tasks. - Ergonomic design: The CP9121BR Air Angle Grinder is designed to be comfortable to use, even for extended periods of time. Its lightweight aluminum alloy housing and ergonomic grip make it easy to handle, while its low noise level ensures that it won’t cause any discomfort or hearing damage. - Safety features: The CP9121BR Air Angle Grinder is equipped with a rear exhaust system that helps to prevent dust and debris from entering the tool, ensuring that it remains safe and reliable to use over time. - Versatile applications: The CP9121BR Air Angle Grinder is suitable for a wide range of applications, including grinding, cutting, and sanding. It can be used on a variety of materials, including metal, wood, and plastic. - General specifications: The CP9121BR Air Angle Grinder has a maximum wheel capacity of 5 inches, a power output of 0.8 HP, and a free speed of 12,000 RPM. Its sound power level is 95 dB(A), while its sound pressure level is 84 dB(A). It is an ideal tool for operators working in general maintenance and especially in tight spaces who are looking for a compact, quiet, and extremely accurate tool. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | Chicago Pneumatic | | Color | Red | | Material | Metal | | Power Source | pneumatic-powered | | Product Dimensions | 9.45"L x 5"W | | Style | 5/8-Inch-11 Spindle Thread | ## Product Details - **Brand:** Chicago Pneumatic - **Material:** Metal - **Product Dimensions:** 9.45"L x 5"W - **Style:** 5/8-Inch-11 Spindle Thread - **Power Source:** pneumatic-powered ## Images ![CP9121BR - Air Grinder Tool, Welder, Woodworking, Automotive Car Detailing, Stainless Steel Polisher, Heavy Duty, Right Angle Grinder, 5 Inch (125 mm), 0.8 HP / 600 W - 12000 RPM - Image 1](https://m.media-amazon.com/images/I/61g8EyyOAQL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ better than IR 3445, all METAL housing *by G***H on April 24, 2014* I bought this to replace my Ingersoll Rand 3445 air angle grinder. What's not clear in the descriptions is: Is the red body of the CP9121 plastic or metal? I glad to report IT IS DEFINITELY METAL. Very likely powder-coated aluminum. (Of course I don't want to scratch it and see for sure.) This unit has the rugged build I was looking for. I noticed what looks like this exact same grinder, same color, under different branding and very close to the same price elsewhere, but sorry, I forgot the exact brands. Note: If money is no object you should also be looking at the Ingersoll Rand G2 series grinders, which are supposed to be super industrial duty. Another competing product is the IR 3445. I had the first version of the IR 3445 (the non-MAX version) and it broke within a year. (I use these for removing mill scale from structural steel.) Although I am partial to IR air tools, I will never get a "composite construction" (read metal/plastic) air tool again. One drop and the housing cracked at the aluminum/plastic joint, and IR doesn't sell the plastic replacement part separately. You have to buy a whole new housing which costs $100 minimum. This (the CP9121) seems a little more noisy than the my previous grinder, but heck, I'm always wearing ear muffs anyways. I will gladly trade the slight noise difference for something durable. ### ⭐⭐⭐⭐⭐ Top quality *by R***Y on March 18, 2025* Works great just keep it oiled. ### ⭐ Error in description *by G***G on March 15, 2018* Description says this has a “spindle lock for easy grinding wheel changes.” It does not have a spindle lock and requires tools. ## Frequently Bought Together - Chicago Pneumatic CP9121BR - Air Grinder Tool, Welder, Woodworking, Automotive Car Detailing, Stainless Steel Polisher, Heavy Duty, Right Angle Grinder, 5 Inch (125 mm), 0.8 HP / 600 W - 12000 RPM - Chicago Pneumatic CP7748 1/2 Inch Air Impact Wrench, Red, Metal - Ingersoll Rand 328B Dual Action Geared Orbital Air Sander, 8" Adhesive Pad, 5/32" Orbit, 825 RPM, 0.25 HP --- ## 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.in/products/13454767-cp9121br-air-grinder-tool-welder-woodworking-automotive-car-detailing-stainless](https://www.desertcart.in/products/13454767-cp9121br-air-grinder-tool-welder-woodworking-automotive-car-detailing-stainless) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-05-15*