{"product_id":"weiler-21091-steel-hand-tube-brush-single-spiral-7-in-oal","title":"Weiler 21091 Steel Hand Tube Brush Single Spiral 7 in Oal","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WEILER 21091 is a single-spiral steel hand tube brush designed for cleaning the interior of small-diameter tubes, pipes, and bores. The brush head measures 1.5 inches in length with a 0.1875-inch brush diameter, making it well suited for tight passages where larger brushes cannot reach. Individual steel fill wires measure 0.005 inches in diameter, delivering consistent scrubbing action without excessive material removal. The 3\/32-inch galvanized steel shank connects to a loop handle, giving the user a secure grip during manual operation. At 7 inches overall length, it provides adequate reach for most hand-cleaning tasks encountered in plumbing, HVAC, and mechanical service applications.\u003c\/p\u003e\n\u003cp\u003eThis brush is used in trade and industrial maintenance settings where technicians need to remove deposits, scale, or debris from the inside of small tubes and fittings. Typical applications include cleaning threaded or smooth-bore tube ends before fitting assembly, clearing restricted orifices, and general-purpose bore maintenance on equipment encountered in HVAC, refrigeration, plumbing, and light mechanical work. The compact brush diameter allows access to ports and passages that standard bottle or pipe brushes cannot service. No power tool or drill is required — the loop handle is designed for hand operation only.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle-spiral fill pattern provides uniform contact along the full 1.5-inch brush length\u003c\/li\u003e\n  \u003cli\u003eSteel fill wire at 0.005 inches diameter offers firm bristle action suited to metal tube interiors\u003c\/li\u003e\n  \u003cli\u003eGalvanized steel shank resists corrosion during repeated wet or solvent cleaning tasks\u003c\/li\u003e\n  \u003cli\u003eLoop handle style allows controlled hand-pressure application without a chuck or drill\u003c\/li\u003e\n  \u003cli\u003e0.1875-inch brush diameter fits narrow-bore tubes and small-diameter fittings\u003c\/li\u003e\n  \u003cli\u003e7-inch overall length provides reach into recessed ports while keeping the handle accessible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style hand tube brush suitable for general-purpose manual cleaning of small-diameter tubes and bores in HVAC, plumbing, and mechanical service applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis brush is intended for hand use only — do not chuck the shank into a power drill, as the single-stem wire construction is not rated for rotary power tool operation. Before use, confirm that the system or component being cleaned has been depressurized and isolated from fluid supply. Wear appropriate eye protection when brushing dislodged debris from tube interiors. Inspect the shank and bristle spiral for deformation before each use and replace if the wire shows kinking or unraveling.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrush Diameter\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrush Length\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 7 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire Diameter\u003c\/strong\u003e: 0.005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.09375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFill Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Material\u003c\/strong\u003e: Galvanized Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Bristle Spirals\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Stem Wires\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandle Style\u003c\/strong\u003e: Loop\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 47131600\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: WEILER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 21091\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WEILER","offers":[{"title":"Default Title","offer_id":51540313604402,"sku":"21091","price":17.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0dbe8516ee4054b710cdcc716b0d0e0e.jpg?v=1785851927","url":"https:\/\/voomisupply.com\/products\/weiler-21091-steel-hand-tube-brush-single-spiral-7-in-oal","provider":"Voomi Supply","version":"1.0","type":"link"}