{"product_id":"starrett-51477-center-gage-55-degree-satin-chrome-steel","title":"Starrett 51477 Center Gage 55 Degree Satin Chrome Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe STARRETT 51477 is a 55-degree center gage machined from steel with a satin chrome coating. Center gages are precision layout and inspection tools used to check thread angles, set lathe tool bits to center, and verify the included angle of cutting tools. The 51477 features graduation markings from 1\/32 to 1\/14 inch, giving machinists a reliable reference for thread pitch and tool positioning tasks. The satin chrome finish reduces glare under shop lighting and provides basic corrosion resistance for shop environments. At 0.032 pounds, the gage is lightweight and easy to handle at the lathe or bench.\u003c\/p\u003e\n\u003cp\u003eThe STARRETT 51477 is suited for machine shops, toolrooms, and maintenance facilities where 55-degree thread forms are common. The 55-degree angle corresponds to Whitworth and BSP thread standards, making this gage appropriate for shops producing or servicing equipment built to British or older imperial thread specifications. Machinists and toolroom technicians use it when setting up engine lathes, checking thread form on finished workpieces, or grinding threading tool bits to the correct profile.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e55-degree included angle for Whitworth and BSP thread form verification\u003c\/li\u003e\n  \u003cli\u003eGraduation range from 1\/32 to 1\/14 inch for pitch reference\u003c\/li\u003e\n  \u003cli\u003eSatin chrome coated steel construction reduces glare and resists corrosion\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.032 pounds for easy one-hand use at the lathe\u003c\/li\u003e\n  \u003cli\u003eCompact form factor fits in a tool apron or bench drawer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose center gage for use with 55-degree thread forms on standard engine lathes and bench inspection setups.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eNo installation is required for this hand tool. Machinists should ensure the lathe is powered down and the spindle is locked before using any gage against a mounted workpiece or tool bit. Handle the gage edges with care, as the precision ground faces can be damaged by impact or improper storage. Store flat in a protective sleeve or dedicated gage roll to preserve the ground surfaces.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Center Gage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAngle\u003c\/strong\u003e: 55 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGraduation Range\u003c\/strong\u003e: 1\/32 to 1\/14 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Satin Chrome\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.032 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: STARRETT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 51477\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51541292450098,"sku":"51477","price":57.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/83aaf4d07e44162130710db38de136bf.jpg?v=1785871536","url":"https:\/\/voomisupply.com\/products\/starrett-51477-center-gage-55-degree-satin-chrome-steel","provider":"Voomi Supply","version":"1.0","type":"link"}