{"product_id":"jet-505450-variable-speed-angle-grinder-4-inch","title":"Jet 505450 Variable-speed Angle Grinder 4 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe JET 505450 is a 4-inch variable-speed angle grinder built for sustained use in grinding, cutting, and surface preparation tasks. It runs on pneumatic power and ramps up to a maximum of 12,000 RPM through a variable-speed throttle, letting the operator match wheel speed to the material and application. Precision spiral bevel gears transfer torque and speed directly to the spindle, contributing to consistent output and extended tool life. A safety throttle lock prevents accidental startup, making it appropriate for busy shop floors and job sites where multiple operators share tools.\u003c\/p\u003e\n\u003cp\u003eThis angle grinder is suited for metalworking, fabrication, and maintenance applications where disc diameter, speed control, and operator comfort are priorities. The two-position ergonomic handle reduces hand fatigue during extended use, which matters on production runs or extended surface work. The toolless wheel guard swivels a full 360 degrees with nine preset positions, allowing quick repositioning without stopping work. It is typically installed and operated by machinists, fabricators, pipefitters, and maintenance mechanics working in industrial or commercial settings.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eVariable-speed throttle with maximum speed of 12,000 RPM\u003c\/li\u003e\n  \u003cli\u003eTwo-position ergonomic handle reduces hand fatigue during extended use\u003c\/li\u003e\n  \u003cli\u003eToolless wheel guard swivels 360 degrees with 9 preset positions\u003c\/li\u003e\n  \u003cli\u003eSafety throttle lock prevents accidental startup\u003c\/li\u003e\n  \u003cli\u003ePrecision spiral bevel gears for efficient torque and speed transfer to the spindle\u003c\/li\u003e\n  \u003cli\u003eCompact 4-inch disc size for controlled material removal and access to tight areas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use tool compatible with standard 4-inch grinding and cutting wheels using a matched arbor size.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool is operated by qualified trades professionals familiar with pneumatic angle grinder safety procedures. Before mounting or changing a wheel, disconnect the air supply completely and verify the wheel guard is properly positioned and secured. Always inspect the grinding wheel for cracks or damage before use, and confirm the wheel's rated RPM meets or exceeds the tool's maximum speed. Follow applicable OSHA and ANSI B7.1 standards for abrasive wheel mounting and use.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel\u003c\/strong\u003e: JAT-450\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisc Size\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Speed\u003c\/strong\u003e: 12,000 RPM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 11.18 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 5.91 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 4.41 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4.45 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: JET\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 505450\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JET","offers":[{"title":"Default Title","offer_id":51525330338098,"sku":"505450","price":436.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b706f322c0086bf8b7bcc32c2b9d7743.jpg?v=1785470737","url":"https:\/\/voomisupply.com\/products\/jet-505450-variable-speed-angle-grinder-4-inch","provider":"Voomi Supply","version":"1.0","type":"link"}