{"product_id":"bernard-403-20-45-tough-lock-contact-tip-0-045-in-copper","title":"Bernard 403-20-45 Tough Lock Contact Tip 0.045 in Copper","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BERNARD 403-20-45 is a heavy-duty copper TOUGH LOCK contact tip engineered for demanding MIG welding applications. Built from solid copper, it delivers consistent electrical conductivity and superior heat dissipation in high-amperage environments. The TOUGH LOCK design creates a secure threaded fit that resists loosening under vibration and thermal cycling, maintaining a stable arc throughout the weld. Designed for 0.045 inch wire, it promotes smooth, consistent wire feeding and helps eliminate bird-nesting and feedability issues that cause downtime on industrial jobsites. This is a professional-grade consumable intended for welders and fabrication shops running high-duty-cycle equipment.\u003c\/p\u003e\n\u003cp\u003eThe 403-20-45 contact tip is suited for professional MIG welding operations in industrial fabrication, structural steel, heavy equipment repair, and similar high-amperage applications. Its heavy-duty rating makes it appropriate for extended-run production welding where standard tips wear prematurely. The TOUGH LOCK interface is compatible with Bernard TOUGH LOCK MIG guns and consumable systems designed around that connection standard.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCopper construction for superior electrical conductivity and heat dissipation\u003c\/li\u003e\n  \u003cli\u003eTOUGH LOCK threaded design prevents tip loosening during high-amperage, high-cycle welding\u003c\/li\u003e\n  \u003cli\u003eSized for 0.045 inch MIG wire for precise, consistent wire feeding\u003c\/li\u003e\n  \u003cli\u003eHeavy-duty duty rating extends service life versus standard-duty tips\u003c\/li\u003e\n  \u003cli\u003eReduces weld spatter and minimizes arc instability caused by poor tip fit\u003c\/li\u003e\n  \u003cli\u003eHelps eliminate bird-nesting and wire feedability issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with Bernard TOUGH LOCK MIG guns and consumable systems that accept the TOUGH LOCK contact tip interface, using 0.045 inch MIG welding wire.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eContact tips should be installed and replaced by a qualified welder or welding technician. Always power down and de-energize the welding system before removing or installing a contact tip. Use the appropriate tip wrench to seat the tip firmly without overtightening, which can damage the threaded connection. Inspect the tip regularly for wear, erosion, and spatter buildup, and replace before conductivity or wire feeding degrades.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire Size\u003c\/strong\u003e: 0.045 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Copper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuty Rating\u003c\/strong\u003e: Heavy-Duty\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: BERNARD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 403-20-45\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BERNARD","offers":[{"title":"Default Title","offer_id":51524921753906,"sku":"403-20-45","price":264.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5ecd77b46120b185df1ab1e7d645a767.jpg?v=1785461741","url":"https:\/\/voomisupply.com\/products\/bernard-403-20-45-tough-lock-contact-tip-0-045-in-copper","provider":"Voomi Supply","version":"1.0","type":"link"}