{"product_id":"internal-tool-20-1660-retaining-ring-grooving-tool","title":"Internal Tool 20-1660 Retaining Ring Grooving Tool","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe INTERNAL TOOL 20-1660 is an interior retaining ring grooving tool designed for cutting precision internal grooves in bored holes. Built from solid carbide with a micrograin grade material structure, it delivers consistent edge retention and dimensional accuracy in demanding machining applications. The tool features a 0.5-inch minimum bore entry, a 0.095-inch groove width, and a 0.5-inch shank diameter. Right-hand cutting geometry makes it compatible with standard lathe and boring setups. Machinists and toolroom technicians use this style of grooving tool when snap ring or retaining ring grooves must be machined to tight tolerances inside a bored feature.\u003c\/p\u003e\u003cp\u003eThis tool is suited for interior groove operations in production and job-shop environments. It handles internal retaining ring grooves in bores starting at 0.5 inches in diameter, with a maximum hole depth capacity of 1.5 inches. The 1.5-inch projection and 1.5-inch shank length allow reach into moderate-depth bores without excessive overhang. Right-hand cutting direction suits conventional spindle rotation on most lathes and CNC turning centers. Solid carbide construction makes it a practical choice for hardened materials, cast iron, and non-ferrous alloys where high-speed steel tooling would wear prematurely.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide, micrograin grade construction for extended tool life and edge stability\u003c\/li\u003e\n\u003cli\u003eInterior cutting geometry for internal retaining ring and snap ring grooves\u003c\/li\u003e\n\u003cli\u003e0.095-inch groove width holds tight dimensional tolerances for standard retaining ring profiles\u003c\/li\u003e\n\u003cli\u003e0.5-inch minimum bore diameter allows use in small-diameter through and blind holes\u003c\/li\u003e\n\u003cli\u003e1.5-inch maximum hole depth capacity with matching 1.5-inch projection\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction for use with standard spindle rotation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard tooling option for interior retaining ring grooving operations on lathes and CNC turning centers accepting a 0.5-inch round shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tool is installed and used by machinists and toolroom technicians on manual lathes or CNC turning centers. Power down and lock out the machine spindle before securing the shank in the tool holder. Ensure the shank is clamped to the minimum recommended engagement depth for the holder in use. Do not exceed the maximum hole depth capacity of 1.5 inches, and verify bore diameter meets the 0.5-inch minimum before entry to avoid tool breakage.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrooving Tool Type\u003c\/strong\u003e: Retaining Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterior\/Exterior\u003c\/strong\u003e: Interior\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Hole Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Hole Depth\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove Width\u003c\/strong\u003e: 0.095 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Micrograin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUndercut\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.45 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241600\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: INTERNAL TOOL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 20-1660\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"INTERNAL TOOL","offers":[{"title":"Default Title","offer_id":67910876528946,"sku":"20-1660","price":115.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/95e81264d86d05eb78f58c09be1ea7ab_4105c215-1a5e-47d3-be68-f60cb98e3ddd.jpg?v=1791201073","url":"https:\/\/voomisupply.com\/products\/internal-tool-20-1660-retaining-ring-grooving-tool","provider":"Voomi Supply","version":"1.0","type":"link"}