{"product_id":"bessey-660s-18-sliding-arm-bar-clamp-18-in-f-style","title":"Bessey 660S-18 Sliding Arm Bar Clamp 18 in F-style","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BESSEY 660S-18 is an F-style sliding arm bar clamp rated for an 18-inch maximum clamping capacity and a 4-inch throat depth. It delivers up to 726 pounds of clamping pressure through a 5\/8-inch spindle machined from high carbon steel. The frame and pad material are steel, finished in an electrogalvanized coating for corrosion resistance. The T-handle is forged steel, providing firm grip and controlled torque during tightening. This clamp is part of the 660S series and is built for shop and field use by carpenters, millwrights, metal fabricators, and general tradespeople who need reliable, repeatable holding force on flat or parallel workpieces.\u003c\/p\u003e\n\u003cp\u003eThe 660S-18 suits woodworking, metal fabrication, and general assembly applications where an F-style clamp is the standard choice. The sliding arm design allows quick jaw adjustment along the 18-inch rail before final tightening, making it practical for repetitive clamping tasks. The 7\/8 x 11\/32-inch rail profile is a patented geometry that contributes to rack resistance under load. Light-duty replaceable swivel pads protect workpiece surfaces during clamping. This clamp is appropriate for both bench and on-site use across residential and light commercial trade work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e18-inch maximum clamping capacity with a 4-inch throat depth for reach on wider stock\u003c\/li\u003e\n  \u003cli\u003e726 pounds of clamping pressure for firm, reliable hold on metal or wood assemblies\u003c\/li\u003e\n  \u003cli\u003e5\/8-inch high carbon steel spindle for durability under repeated load cycles\u003c\/li\u003e\n  \u003cli\u003ePatented 7\/8 x 11\/32-inch rail profile resists racking under clamping force\u003c\/li\u003e\n  \u003cli\u003eForged steel T-handle for controlled, ergonomic tightening\u003c\/li\u003e\n  \u003cli\u003eReplaceable light-duty swivel pads protect finished and unfinished workpiece surfaces\u003c\/li\u003e\n  \u003cli\u003eElectrogalvanized finish provides corrosion resistance in shop and field environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style F-clamp for general clamping applications in woodworking, metal fabrication, and light assembly work where an 18-inch bar clamp with a 4-inch throat depth is required.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis clamp is a hand tool requiring no power source or special installation. Slide the movable arm to approximate jaw spacing before engaging the spindle to avoid unnecessary thread travel. Inspect swivel pads before each use and replace them when worn to prevent marring of workpieces. When clamping near finished surfaces, confirm pad condition and consider using additional protective material between the pad and the surface.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClamp Type\u003c\/strong\u003e: F-Style\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Capacity\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThroat Depth\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClamping Pressure\u003c\/strong\u003e: 726 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpindle Diameter\u003c\/strong\u003e: 0.625 inches (5\/8 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpindle Material\u003c\/strong\u003e: High Carbon Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRail Size\u003c\/strong\u003e: 7\/8 x 11\/32 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRail Length\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandle Style\u003c\/strong\u003e: T-Handle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandle Material\u003c\/strong\u003e: Forged Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePad Type\u003c\/strong\u003e: Light Duty Replaceable Swivel Pads\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePad Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Electrogalvanized\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 660S\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.75 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 20 x 5 x 0.75 inches\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: BESSEY\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 660S-18\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BESSEY","offers":[{"title":"Default Title","offer_id":51542906667314,"sku":"660S-18","price":74.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0e3d437a2b5504daccc0ed355bb2e711_e510ecdc-a764-4f0e-831d-27a84c5ef59d.jpg?v=1785910554","url":"https:\/\/voomisupply.com\/products\/bessey-660s-18-sliding-arm-bar-clamp-18-in-f-style","provider":"Voomi Supply","version":"1.0","type":"link"}