{"product_id":"shrinker-e-strechter-a-leva-ss-20","title":"Bernardo Shrinker and Stretcher SS 20 – Stretching\/Compression Kit","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eBernardo Lever Shrinker and Strechter SS 20\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBernardo Lever Shrinker and Strechter SS 20\u003c\/strong\u003e is the tool for shaping edges and radii on sheet metal without cuts or welds. Thanks to its robust lever and extra-long \u003cstrong\u003e245 mm\u003c\/strong\u003e throat depth, it allows you to work comfortably on deep parts while maintaining control and repeatability. The standard equipment includes \u003cstrong\u003e1 shrinking attachment\u003c\/strong\u003e and \u003cstrong\u003e1 stretching attachment\u003c\/strong\u003e, so you can quickly switch between creating concave and convex curves. The solid body and weight of \u003cstrong\u003e24 kg\u003c\/strong\u003e ensure stability during use, while the jaws are optimized for \u003cstrong\u003esteel up to 1.5 mm (400 N\/mm²)\u003c\/strong\u003e and \u003cstrong\u003ealuminum up to 1.8 mm\u003c\/strong\u003e. Compact in the workshop, yet powerful in operation, the SS 20 is ideal for bodyworkers, makers, and sheet metal professionals who demand precision, durability, and versatility.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cp\u003e🧰 Equipment: 1 stretching attachment + 1 shrinking attachment\u003cbr\u003e🛠️ Steel up to \u003cstrong\u003e1.5 mm\u003c\/strong\u003e (400 N\/mm²)\u003cbr\u003e🪙 Aluminum up to \u003cstrong\u003e1.8 mm\u003c\/strong\u003e\u003cbr\u003e📏 \u003cstrong\u003e245 mm throat depth\u003c\/strong\u003e for deep parts\u003cbr\u003e📐 Dimensions: \u003cstrong\u003e375 × 150 × 380 mm\u003c\/strong\u003e\u003cbr\u003e⚖️ Weight: \u003cstrong\u003eapprox. 24 kg\u003c\/strong\u003e for maximum stability\u003cbr\u003e🔁 Quick change between shrink\/stretch functions\u003cbr\u003e🧱 Robust lever structure for intensive use\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\n\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBernardo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eShrinker \u0026amp; Strechter SS 20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorkable materials\u003c\/td\u003e\n\u003ctd\u003eSteel ≤ \u003cstrong\u003e1.5 mm\u003c\/strong\u003e (400 N\/mm²) \/ Aluminum ≤ \u003cstrong\u003e1.8 mm\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThroat depth\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e245 mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e375 mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e150 mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e380 mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e≈ 24 kg\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded accessories\u003c\/td\u003e\n\u003ctd\u003e1 for stretching, 1 for shrinking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\n\u003chr\u003e\n\u003ch3\u003eStandard equipment\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBernardo SS 20\u003c\/strong\u003e device\u003cbr\u003e\u003cstrong\u003e1\u003c\/strong\u003e stretching attachment\u003cbr\u003e\u003cstrong\u003e1\u003c\/strong\u003e shrinking attachment\u003cbr\u003eUser manual\u003c\/p\u003e\n\n\u003ch3\u003eLogistics\u003c\/h3\u003e\n\u003cp\u003eBernardo shipping: 5–9 business days (7 days in Southern Italy). Original spare parts available with 3–5 business days shipping. Customer support in Italian available.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does a shrinker do and what does a stretcher do?\u003c\/summary\u003e\n\u003cp\u003eThe \u003cstrong\u003eshrinker\u003c\/strong\u003e compresses the metal fibers at the edge, shortening it and creating a concave curve. The \u003cstrong\u003estretcher\u003c\/strong\u003e elongates the fibers by expanding them, creating a convex curve. By alternating between the two functions, complex shapes can be achieved on thin sheet metal without wrinkles or tears. An essential tool for bodyworkers, boat builders, and vehicle restorers.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat sheet metal thicknesses can the Bernardo Shrinker and Strechter SS 20 handle?\u003c\/summary\u003e\n\u003cp\u003eBernardo shrinkers\/stretchers typically work steel up to 1.2–2.0 mm and aluminum up to 1.5–2.5 mm, depending on the model. Please check the specific limits in the technical table for the Bernardo Shrinker and Strechter SS 20. Exceeding the limits will cause damage to the tools and irregular deformation of the workpiece.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between lever, foot-operated, and motorized versions?\u003c\/summary\u003e\n\u003cp\u003eThe \u003cstrong\u003elever\u003c\/strong\u003e (Pro) version is manual: the operator activates the lever with both hands, ideal for occasional jobs. The \u003cstrong\u003efoot-operated\u003c\/strong\u003e (FD\/F) version operates the machine with the foot, freeing both hands to hold and guide the workpiece — more comfortable for repetitive tasks. The \u003cstrong\u003emotorized\u003c\/strong\u003e or electric version automates the entire cycle for series production.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo the jaws wear out? Are spare parts available?\u003c\/summary\u003e\n\u003cp\u003eYes. The jaws of shrinkers\/stretchers wear out after prolonged intensive use. Original Bernardo spare jaws are available with 3–5 business days shipping. Replacement does not require special tools.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes it also work on copper and brass?\u003c\/summary\u003e\n\u003cp\u003eYes. Copper and brass are more ductile materials than steel: the effective capacity is higher compared to mild steel. For specific alloys, please check thickness limits with Krollit. Customer support in Italian available.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":50695846035784,"sku":"06-1112","price":395.1,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/Shrinker-e-Strechter-a-leva-SS-20-extra-big-1367-520.jpg?v=1758211011","url":"https:\/\/www.krollit.com\/products\/lever-shrinker-stretcher-ss-20","provider":"Krollit","version":"1.0","type":"link"}