{"product_id":"estwing-mfg-co-mrf40e-engineer-hammer-40-oz","title":"Estwing Mfg Co MRF40E Engineer Hammer 40 Oz","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ESTWING MFG CO MRF40E is a 40-ounce engineer hammer built for heavy striking tasks in the trades. The head is forged and tempered steel with polished, beveled faces for consistent contact on target. A blue painted finish protects the head from corrosion. The handle is a jacketed, textured yellow fiberglass construction with a ribbed grip that resists slipping during use. This hammer is balanced and tempered throughout, making it a reliable hand tool for HVAC, plumbing, electrical, and general construction work where precision strikes are needed.\u003c\/p\u003e\n\u003cp\u003eThe MRF40E is designed for striking cold chisels, brick chisels, punches, star drills, spikes, and hardened nails. It suits residential and commercial job sites where tradespeople need a durable, high-mass hammer for chisel driving, masonry work, and fastener setting. The 40-ounce head weight delivers substantial impact force with each blow, reducing the number of strikes needed on stubborn fasteners or chisels.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e40-ounce forged and tempered steel head for high-impact striking\u003c\/li\u003e\n  \u003cli\u003ePolished and beveled faces promote clean, centered strikes\u003c\/li\u003e\n  \u003cli\u003eJacketed yellow fiberglass handle resists shock and breakage\u003c\/li\u003e\n  \u003cli\u003eRibbed grip surface reduces hand slippage during heavy use\u003c\/li\u003e\n  \u003cli\u003eBlue painted head finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eBalanced construction reduces fatigue over extended use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose engineer hammer for use with cold chisels, brick chisels, punches, star drills, spikes, and hardened nails across trade and construction applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInspect the handle and head connection before each use and replace the tool if any looseness, cracks, or damage are present. Always wear appropriate eye protection when striking chisels or punches, as fragments can be ejected. Use the full face of the hammer head on the target surface to avoid glancing strikes. Store in a dry location to preserve the handle and head finish.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Weight\u003c\/strong\u003e: 40 oz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Material\u003c\/strong\u003e: Forged and Tempered Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandle Material\u003c\/strong\u003e: Jacketed Textured Yellow Fiberglass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Finish\u003c\/strong\u003e: Blue Painted\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 5 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: EA\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: ESTWING MFG CO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: MRF40E\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ESTWING","offers":[{"title":"Default Title","offer_id":51561008038194,"sku":"MRF40E","price":51.54,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5d1acb2ce8ced09f1fe487cc7bcead33.jpg?v=1786461262","url":"https:\/\/voomisupply.com\/products\/estwing-mfg-co-mrf40e-engineer-hammer-40-oz","provider":"Voomi Supply","version":"1.0","type":"link"}