{"product_id":"weiler-21090-steel-hand-tube-brush-single-spiral-7-in-oal","title":"Weiler 21090 Steel Hand Tube Brush Single Spiral 7 in Oal","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WEILER 21090 is a single-spiral steel hand tube brush designed for cleaning the interior of small-diameter tubes, ports, and passages. The brush head measures 1.5 inches long with a 3\/16-inch brush diameter and uses 0.003-inch steel wire filaments wound in a single spiral pattern. A 3\/32-inch galvanized steel shank connects to a loop handle, giving the technician a secure grip during manual scrubbing. Overall length is 7 inches. This brush is well suited for deburring, scale removal, and flux cleaning in tight-bore applications common to HVAC, plumbing, and refrigeration work.\u003c\/p\u003e\n\u003cp\u003eThis brush is intended for hand use in applications where a power drill is impractical or where light, controlled abrasion is needed. Typical uses include cleaning copper tube ends before soldering, clearing orifice passages, removing corrosion from small fittings, and brushing out threaded ports. The loop handle style allows single-hand operation without a separate handle tool. Trade professionals in HVAC, plumbing, and refrigeration service will find the 3\/16-inch diameter appropriate for small-bore tube and port cleaning tasks encountered in the field.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle-spiral fill pattern provides consistent, even contact along the bore wall\u003c\/li\u003e\n  \u003cli\u003e0.003-inch steel wire filaments deliver controlled abrasion without aggressive material removal\u003c\/li\u003e\n  \u003cli\u003e3\/16-inch brush diameter suits small-bore tubes and narrow ports\u003c\/li\u003e\n  \u003cli\u003e7-inch overall length with loop handle for secure single-hand grip\u003c\/li\u003e\n  \u003cli\u003eGalvanized steel shank resists corrosion during wet or flux-exposed cleaning tasks\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.01 pounds, easy to carry in a service kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for manual hand use in small-bore tube and port cleaning applications. Suitable for use wherever a 3\/16-inch brush diameter fits the target bore.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis is a hand-operated brush and does not require power tools for use. When cleaning tube interiors before soldering or brazing, ensure all flux residue and debris are fully removed and the work area is clear of open flame before applying heat. Inspect the brush wire and shank for deformation or loose fill before each use and replace if the spiral wrap shows signs of unraveling. Always follow applicable safety practices when working with cleaning chemicals or in confined spaces.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrush Diameter\u003c\/strong\u003e: 3\/16 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: 0.003 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/32 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\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: 21090\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WEILER","offers":[{"title":"Default Title","offer_id":51544161681714,"sku":"21090","price":17.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0dbe8516ee4054b710cdcc716b0d0e0e_2699ef7a-8a6d-4de4-83b8-3db476c9f360.jpg?v=1785924966","url":"https:\/\/voomisupply.com\/products\/weiler-21090-steel-hand-tube-brush-single-spiral-7-in-oal","provider":"Voomi Supply","version":"1.0","type":"link"}