{"product_id":"milwaukee-49-56-0043-ice-hardened-bi-metal-hole-saw-1-in","title":"Milwaukee 49-56-0043 Ice Hardened Bi-metal Hole Saw 1 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MILWAUKEE 49-56-0043 is a 1-inch bi-metal hole saw built for cutting metal and wood in demanding trade applications. It uses a proprietary cryogenic hardening process that treats the steel to the core rather than applying a surface coating. This process minimizes soft austenite metal and increases hard martensite throughout the body, resulting in a consistently hard cutting tool. The saw features Matrix II Bi-Metal Teeth and a positive rake angle designed for faster cutting speeds. It is used by HVAC technicians, electricians, plumbers, and maintenance professionals.\u003c\/p\u003e\n\u003cp\u003eThis hole saw is suited for residential and commercial applications where consistent performance across metal and wood substrates is required. Typical use cases include knockout cuts in electrical panels, conduit entry points, pipe penetrations through framing, and HVAC duct and register openings. The 1-inch diameter makes it a common size for standard trade rough-in and service work across multiple disciplines.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eProprietary cryogenic hardening process treats steel to the core for up to 50% longer life compared to standard heat-treated hole saws\u003c\/li\u003e\n  \u003cli\u003eMatrix II Bi-Metal Teeth construction for greater tooth durability during repeated cuts\u003c\/li\u003e\n  \u003cli\u003ePositive rake angle geometry promotes faster material removal in metal and wood\u003c\/li\u003e\n  \u003cli\u003eThrough-hardened construction eliminates wear associated with surface coatings\u003c\/li\u003e\n  \u003cli\u003e1-inch cutting diameter suited for common trade rough-in applications in HVAC, electrical, and plumbing\u003c\/li\u003e\n  \u003cli\u003eManufactured in the United States\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard bi-metal hole saw replacement for use with compatible hole saw mandrels accepting 1-inch bi-metal saws in HVAC, electrical, plumbing, and maintenance applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall the hole saw onto a compatible arbor and mandrel before use, ensuring the locking pin is fully seated. De-energize electrical panels and shut off water supply or gas lines as required by the application before drilling. Use appropriate eye protection and secure workpieces to prevent movement during cutting. Follow applicable NEC, IPC, or IFGC guidelines for penetration locations and sealing requirements after holes are made.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTooth Construction\u003c\/strong\u003e: Matrix II Bi-Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardening Process\u003c\/strong\u003e: Cryogenic (Ice Hardened)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 2.60 inches x 1.30 inches x 1.18 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: United States\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: MILWAUKEE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 49-56-0043\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MILWAUKEE","offers":[{"title":"Default Title","offer_id":67661935935794,"sku":"49-56-0043","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/171742117.jpg?v=1790469926","url":"https:\/\/voomisupply.com\/products\/milwaukee-49-56-0043-ice-hardened-bi-metal-hole-saw-1-in","provider":"Voomi Supply","version":"1.0","type":"link"}