Built for weld preparation, edge beveling, surface grinding, and general material removal, the Dotco 12L2777-28OH Right Angle Grinder combines a 0.9 HP air motor with a 4″ wheel capacity and a 12,000 RPM free speed to provide controlled grinding performance across a variety of metalworking applications. The composite housing helps reduce tool weight while maintaining durability for extended operation, and the rear exhaust directs discharged air away from the work surface to help improve operator visibility and reduce debris blowback. Its right angle configuration allows easier access to corners, edges, and other areas where a straight grinder may be difficult to position.This grinder is suited for industrial maintenance, fabrication shops, aerospace manufacturing, automotive service, and production environments where consistent material removal and maneuverability are important. The 12,000 RPM operating speed provides compatibility with appropriately rated grinding accessories while maintaining efficient stock removal and surface preparation.Type: Right Angle Grinder | Model: 12L2777-28OH | Wheel Capacity: 4″ | Power: 0.9 HP | Free Speed: 12,000 RPM | Housing: Composite | Exhaust: RearFeatures:0.9 HP pneumatic motor provides consistent power for grinding and surface preparation.Right angle configuration improves access to corners, edges, and confined work areas.Accepts 4″ grinding wheels for common industrial grinding applications.12,000 RPM free speed supports efficient material removal when paired with properly rated accessories.Composite housing helps reduce tool weight while providing a comfortable grip.Rear exhaust directs airflow away from the operator and finished work surface.Made in USA: Applications:Grinding welds and removing excess material during metal fabrication.Surface preparation before painting, coating, or welding.Deburring fabricated metal components and castings.Maintenance and repair work in manufacturing and industrial facilities.Automotive, aerospace, and general MRO grinding applications.FAQs:Q: What size grinding wheel does this tool accept?A: The Dotco 12L2777-28OH is designed for 4-inch grinding wheels.Q: What is the advantage of a rear exhaust?A: A rear exhaust helps direct air away from the workpiece and operator, improving visibility and reducing debris around the grinding area.Q: Why is a composite housing beneficial?A: Composite housings help reduce overall tool weight while providing durability and a comfortable grip during extended use.Q: Can I use any grinding wheel with this tool?A: No. Always use accessories with a maximum operating speed equal to or greater than the tool’s 12,000 RPM free speed. .spec-accordion{width:100%;max-width:1200px;margin:1em auto;font-family:”Montserrat”,Arial,sans-serif;box-sizing:border-box} .spec-accordion *{box-sizing:border-box} 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Sanding/Polishing Disc2.410.52.901/4 in10L2778-451/4 inRear145003/4 Carbide Burr, 1.25 Mounted Wheel4 (100mm) Sanding/Polishing Disc2.410.52.901/4 in12L2277-361/4 inRear120003/4 Carbide Burr, 1.25 Mounted Wheel4 (100mm) Sanding/Polishing Disc2.2102.701/4 in12L2278-361/4 inRear145003/4 Carbide Burr, 1.25 Mounted Wheel4 (100mm) Sanding/Polishing Disc2.2102.701/4 in12L2776-361/4 inRear135003/4 Carbide Burr, 1.25 Mounted Wheel4 (100mm) Sanding/Polishing Disc2.210.52.901/4 in12L2777-321/4 in-28iRear120003/4 Carbide Burr, 1.25 Mounted Wheel4 (100mm) Sanding/Polishing Disc2.210.52.901/4 in12L2777-361/4 inRear120003/4 Carbide Burr, 1.25 Mounted Wheel4 (100mm) Sanding/Polishing Disc2.210.52.901/4 in12L2777-451/4 inRear120003/4 Carbide Burr, 1.25 Mounted Wheel4 (100mm) Sanding/Polishing Disc2.210.52.901/4 in12L2778-361/4 inRear145003/4 Carbide Burr, 1.25 Mounted Wheel4 (100mm) Sanding/Polishing Disc2.210.52.901/4 in12L2778-451/4 inRear145003/4 Carbide Burr, 1.25 Mounted Wheel2.210.52.901/4 in12L2776-301/4 in-20iRear135004 Sanding Disc2.210.52.901/4 in12L2776-321/4 in-28iRear135004 Sanding Disc2.210.52.901/4 in12L2777-28OH3/8 in-24eRear120004 Type 1 Cut-Off Wheel3.310.92.901/4 in12L2778-283/8 in-24eRear145004 Type 1 Cut-Off Wheel3.310.92.901/4 in12L2778-843/8 in-24eRear145004 Type 27 Wheel2.8710.52.301/4 in (function(){ function initSpecAccordions(){ document.querySelectorAll(“.spec-accordion”).forEach(function(a){ if(a.dataset.specAccordionInit===”true”)return;a.dataset.specAccordionInit=”true”; var b=a.querySelector(“.spec-accordion-toggle”),p=a.querySelector(“.spec-accordion-panel”);if(!b||!p)return; var u=false; function m(){return(a.getBoundingClientRect().width||window.innerWidth)
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