{"product_id":"weha-blitz-dry-diamond-core-bit","title":"Weha Blitz Dry Diamond Core Bit — Vacuum-Brazed Interior \u0026 Exterior Diamond | 1-3\/8\" \u0026 2\" | Granite, Quartz \u0026 Stone","description":"\u003cp\u003eThe high-speed dry core bit engineered for aggressive, clean drilling on stone countertops. The \u003cstrong\u003eWeha Blitz Dry Diamond Core Bit\u003c\/strong\u003e is purpose-built for granite, marble, quartz, quartzite, engineered stone, and concrete countertop fabrication. Vacuum-brazed diamonds on both the inside and outside of the barrel minimize drag, heat, and friction while delivering immediate bite, reduced walking, and fast, clean holes.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 1-3\/8\", 2\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 5\/8\"-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal length:\u003c\/strong\u003e 4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended speed:\u003c\/strong\u003e Up to 10,000 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Dry (primary) | Wet (optional)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpected life:\u003c\/strong\u003e Approximately 60–150 holes depending on material thickness and hardness\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat Makes the Blitz Different\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eInterior \u0026amp; Exterior Vacuum-Brazed Diamonds\u003c\/strong\u003e\u003cbr\u003e\nUnlike standard core bits that only feature exterior diamonds, the Blitz is vacuum-brazed inside and outside the barrel. This dual-diamond design increases cutting speed, improves core release, and allows for easy hole enlargement when needed. Also performs exceptionally well for radius holes and fine-tuning grommet openings.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFast Drilling Performance\u003c\/strong\u003e\u003cbr\u003e\nCapable of drilling through 3cm granite in seconds at recommended speeds. Operates at up to 10,000 RPM for maximum throughput in production fabrication environments.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDry or Wet Use\u003c\/strong\u003e\u003cbr\u003e\nDesigned primarily for dry on-site fabrication — mount directly onto standard 5\/8\"-11 grinders for fast faucet holes, sink corners, radius work, and grommet openings. May also be used wet in shop environments with air or electric polishers.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e60–150 Holes Per Bit\u003c\/strong\u003e\u003cbr\u003e\nDespite its high cutting speed, the Blitz delivers impressive durability. Approximately 60–150 holes per bit depending on material thickness and hardness.\u003c\/p\u003e\n\n\u003ch2\u003eCompatible Materials\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGranite and marble\u003c\/li\u003e\n\u003cli\u003eQuartz and engineered stone\u003c\/li\u003e\n\u003cli\u003eQuartzite and natural stone\u003c\/li\u003e\n\u003cli\u003eConcrete countertops\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual vacuum-brazed diamonds\u003c\/strong\u003e — inside and outside barrel; faster cutting, better core release, easy hole enlargement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmediate bite\u003c\/strong\u003e — reduced walking from first contact; improved control and accuracy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10,000 RPM rated\u003c\/strong\u003e — high-speed performance for production fabrication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5\/8\"-11 thread\u003c\/strong\u003e — fits standard angle grinders and polishers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry or wet use\u003c\/strong\u003e — flexible for jobsite and shop environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e60–150 hole life\u003c\/strong\u003e — durable performance despite aggressive cutting speed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWorks Well With\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/weha-dry-magic-hex-head-core-bits\"\u003eWeha Dry Magic Hex Head Core Bits\u003c\/a\u003e — alternative dry core bit with hex head for drill driver use\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/weha-dry-magic-vacuum-brazed-core-bits\"\u003eWeha Dry Magic Vacuum Brazed Core Bits\u003c\/a\u003e — vacuum-brazed alternative in additional size options\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/weha-t-31-anchor-bit-3-16-x-1-4-diamond-anchor-bit\"\u003eWeha T-31 Anchor Bit\u003c\/a\u003e — for drilling anchor holes in stone after core drilling is complete\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/weha-5-matrix-diamond-turbo-contour-blade\"\u003eWeha 5\" Matrix Diamond Turbo Contour Blade\u003c\/a\u003e — for vanity bowl cutouts on the same granite and quartz materials\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/weha-rock-dog-router-single-speed-with-aquaplaning-base\"\u003eWeha Rock Dog Router\u003c\/a\u003e — for edge profiling after sink and faucet hole drilling is complete\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weha","offers":[{"title":"1 3\/8\"","offer_id":51164348514528,"sku":"20138","price":73.79,"currency_code":"USD","in_stock":true},{"title":"2\"","offer_id":51164348547296,"sku":"20141","price":100.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/3943\/1904\/files\/2013813_8_BlitzDryCoreBit1.jpg?v=1774356845","url":"https:\/\/protoolhaus.com\/products\/weha-blitz-dry-diamond-core-bit","provider":"Pro Tool Haus","version":"1.0","type":"link"}