{"product_id":"klein-31025-bi-metal-hole-saw-3-1-2-inch","title":"Klein Bi-Metal Hole Saw, 3-1\/2-in. (31025)","description":"\u003csection data-aplus\u003e\n\u003cdetails id=\"product-features\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"features\"\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/diameter.svg\" alt=\"diameter\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003ePrecise 3-1\/2\" Holes\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eCuts clean 3-1\/2\" (8.9 cm) holes in stainless steel, mild steel, drywall, ceiling tile, laminates, wood and plastic.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/blade-teeth.svg\" alt=\"blade-teeth\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003e4\/6 Variable Teeth\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe VARI-RAKER ET 4\/6 TPI tooth pattern keeps cuts smooth across steel, wood and plastic.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/tool-free-change.svg\" alt=\"tool-free-change\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eQuick-Release Ready\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eMounts on Klein's quick-release arbor for fast swaps, or on a standard threaded arbor.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/specs.svg\" alt=\"specs\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003ePlugs Out Fast\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eAccess slots let you lever the waste plug free instead of fighting it.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/material.svg\" alt=\"material\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eBuilt Thicker\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eHeavy-duty back plate construction is made to take jobsite abuse.\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-overview\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\" data-product-summary\u003e\n    \u003cp\u003eThe Klein Tools Bi-Metal Hole Saw, 3-1\/2-Inch (31025) cuts precise 3-1\/2\" (8.9 cm) holes in stainless steel, mild steel, drywall, ceiling tile, laminates, wood and plastic. This is a bi-metal hole saw designed for electrical, mechanical and general construction work where one cutter has to handle metal and softer materials alike.\u003c\/p\u003e\n    \u003cp\u003eAt 3-1\/2\" (8.9 cm) and 10.6 oz (301 g), this saw puts a lot of teeth in the cut. The 4\/6 variable tooth pattern keeps it cutting smoothly across that long perimeter.\u003c\/p\u003e\n    \u003cp\u003eThe 3-1\/2\" (31025) cutting edge is bi-metal, tuned for steel first, and it carries Klein's VARI-RAKER ET 4\/6 TPI variable tooth pattern. That combination is what lets one cup move from stainless and mild steel to wood, laminate and drywall without swapping to a different saw.\u003c\/p\u003e\n    \u003cp\u003eKlein put real thought into plug removal on the 31025. The cup wall has a unique pattern of access slots that give you both clearance and leverage, which turns a stuck plug into a quick push with a flat screwdriver.\u003c\/p\u003e\n    \u003cp\u003eDurability starts at the back plate, and Klein makes the 3-1\/2\" saw's back plate thicker than standard to take abuse. Mounting is flexible: the saw is compatible with Klein's quick-release arbor and with traditional threaded arbors. An arbor is required and sold separately.\u003c\/p\u003e\n    \u003cp\u003eNearby Klein bi-metal hole saw sizes include the 3\" (31024) and 3-5\/8\" (31026), if your layout calls for a different diameter.\u003c\/p\u003e\n    \u003cp\u003eWho should buy it: trades that cut through mixed materials in a day, from steel boxes and panels to framing and drywall, and anyone adding a 3-1\/2\" size to a hole saw kit that has to hold up in metal.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eOne Saw, Many Materials\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/klein-31025_callout1.jpg\" alt=\"Klein Tools 3-1\/2-inch bi-metal hole saw (31025) cutting a clean hole in mild steel sheet on the jobsite\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThe 3-1\/2\" saw is rated for metal and the softer materials around it, so you are not swapping cups mid-job.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eCuts 3-1\/2\" (8.9 cm) holes\u003c\/li\u003e\n          \u003cli\u003eStainless steel, mild steel, drywall, ceiling tile, laminates, wood, plastic\u003c\/li\u003e\n          \u003cli\u003eVARI-RAKER ET 4\/6 TPI tooth pattern\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-benefits-2\" class=\"acc flip\"\u003e\n  \u003csummary\u003e\u003ch2\u003eLeverage Where You Need It\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/klein-31025_callout3.jpg\" alt=\"Klein Tools 3-1\/2-inch hole saw (31025) access slots used to remove the waste plug\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eAccess slots in the 3-1\/2\" cup provide clearance and leverage to push the waste plug free.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eUnique access-slot pattern\u003c\/li\u003e\n          \u003cli\u003eClearance and leverage for plug removal\u003c\/li\u003e\n          \u003cli\u003e2\" (5.1 cm) cutting depth\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-benefits-3\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eFits Your Arbor\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/klein-31025_callout4.jpg\" alt=\"Klein Tools 3-1\/2-inch bi-metal hole saw (31025) heavy-duty back plate mounted on an arbor\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eRun the 3-1\/2\" saw on the Klein Tools quick-release arbor for fast swaps or stick with a traditional threaded arbor.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eThicker heavy-duty back plate\u003c\/li\u003e\n          \u003cli\u003eKlein Tools quick-release arbor compatible\u003c\/li\u003e\n          \u003cli\u003eTraditional threaded arbor compatible\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-key-specifications\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n\u003ctable class=\"aplusspecs\"\u003e\n\u003ctr\u003e\n\u003cth\u003eHole Diameter\u003c\/th\u003e\n\u003ctd\u003e3-1\/2\" (8.9 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCutting Depth\u003c\/th\u003e\n\u003ctd\u003e2\" (5.1 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBi-metal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTooth Pattern\u003c\/th\u003e\n\u003ctd\u003eVARI-RAKER ET, 4\/6 TPI variable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCuts\u003c\/th\u003e\n\u003ctd\u003eStainless and mild steel, drywall, ceiling tile, laminates, wood, plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eArbor\u003c\/th\u003e\n\u003ctd\u003eKlein quick-release or traditional threaded (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e10.6 oz (301 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n    \u003c\/div\u003e\n  \n\u003c\/details\u003e\n\u003cdetails id=\"product-compatibility\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"compat-list\"\u003e\n      \u003cdiv class=\"compat-row\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/compatible.svg\" alt=\"\" class=\"icon-sm\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eHole Saw Arbors\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eKlein Tools quick-release arbor; traditional threaded arbors\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-applications-uses\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eBuilt For\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tags\"\u003e\n      \u003cspan class=\"tag\"\u003eElectrical\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eHVAC\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003ePlumbing\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eMetalworking\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eCarpentry\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eRemodeling\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-pro-tips\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003ePro Tip\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tip-row\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/pro-tip.svg\" alt=\"\" class=\"icon-lg\"\u003e\n      \u003cp class=\"tip-text\"\u003eIf you swap hole saw sizes often, pair this saw with the Klein Tools quick-release arbor. Changing cups without unthreading saves real time on a job with several hole sizes.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-tool-nut-take\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eTool Nut's Take\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"eyebrow\"\u003eTool Nut's Take\u003c\/div\u003e\n    \u003ch3\u003e3-1\/2-Inch Holes in Steel, Wood and Drywall\u003c\/h3\u003e\n    \u003cp\u003eThe Klein Tools Bi-Metal Hole Saw, 3-1\/2-Inch (31025) cuts clean 3-1\/2\" holes in steel and everything softer, and lets go of the plug easily.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Anyone who needs 3-1\/2\" holes in mixed materials and wants a saw that holds up in metal.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e VARI-RAKER ET 4\/6 tooth pattern, access slots and fit on both quick-release and threaded arbors.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is the saw only; it needs a hole saw arbor, which is sold separately.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-faqs\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eCommon Questions\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat materials can the Klein 31025 cut?\u003c\/strong\u003e Klein rates it for stainless steel, mild steel, drywall, ceiling tile, laminates, wood and plastic.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDoes it come with an arbor?\u003c\/strong\u003e No. It needs a hole saw arbor, sold separately. It fits the Klein Tools quick-release arbor and traditional threaded arbors.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eHow deep does it cut?\u003c\/strong\u003e Klein lists a 2\" (5.1 cm) drilling depth.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat tooth pattern does it use?\u003c\/strong\u003e VARI-RAKER ET with a variable 4\/6 teeth per inch.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e","brand":"Klein Tools","offers":[{"title":"Default Title","offer_id":54244564468006,"sku":"31025-KLE","price":22.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/31025.jpg?v=1793303310","url":"https:\/\/www.toolnut.com\/products\/klein-31025-bi-metal-hole-saw-3-1-2-inch","provider":"Tool Nut","version":"1.0","type":"link"}