{"product_id":"busch-fig-414au-carbide-90-hart-bur-kit-15-piece-0-90mm-2-30mm-3-32-shank","title":"Busch Fig 414AU Carbide 90 Hart Bur-3\/32\" Shanks-Kit of 15- 0.90mm to 2.30mm","description":"\u003cp\u003eThe Busch Fig 414AU Carbide 90° Hart Bur Kit delivers a complete range of 15 sizes in a single convenient plastic box, purpose-built for cutting seats in prongs. Spanning 0.90mm to 2.30mm in 0.10mm increments, this kit gives bench jewelers and stone setters a comprehensive selection to handle a wide variety of prong work.\u003c\/p\u003e\u003cp\u003eCarbide construction makes these the longest-lasting burs in the Busch lineup, outlasting both tungsten vanadium and high-speed steel burs. Their advanced blade geometry — typically reserved for steel tooling — is engineered to power through the toughest metals, including platinum, titanium, and steel, while also delivering exceptional service life on standard gold alloys. The result is a lower cost-per-use compared to conventional burs.\u003c\/p\u003e\u003cp\u003eAll shanks measure 3\/32\" for broad compatibility with standard flex-shaft handpieces and rotary tools. Also available individually by the piece. Related sets include the Fig 446AU 70° Hart Bur kit (BAU118.600) and the Fig 413AU Traditional Setting Bur kit (BAU118.835).\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e90° hart bur angle optimized for cutting prong seats\u003c\/li\u003e\n\u003cli\u003eCarbide construction outlasts tungsten vanadium and high-speed steel burs\u003c\/li\u003e\n\u003cli\u003eAdvanced blade geometry for powerful, clean cutting action\u003c\/li\u003e\n\u003cli\u003eSuitable for platinum, titanium, steel, and standard gold alloys\u003c\/li\u003e\n\u003cli\u003e15 sizes from 0.90mm to 2.30mm in 0.10mm increments\u003c\/li\u003e\n\u003cli\u003eStored and sold in a plastic box for organized bench storage\u003c\/li\u003e\n\u003cli\u003eMade in Germany\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e414AU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Type\u003c\/th\u003e\n\u003ctd\u003eHart Bur, 90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.90mm – 2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e15 burs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Speed\u003c\/th\u003e\n\u003ctd\u003e2,000 – 10,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackaging\u003c\/th\u003e\n\u003ctd\u003ePlastic storage box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBAU118.509 — \u003cstrong\u003e0.90mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.510 — \u003cstrong\u003e1.00mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.511 — \u003cstrong\u003e1.10mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.512 — \u003cstrong\u003e1.20mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.513 — \u003cstrong\u003e1.30mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.514 — \u003cstrong\u003e1.40mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.515 — \u003cstrong\u003e1.50mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.516 — \u003cstrong\u003e1.60mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.517 — \u003cstrong\u003e1.70mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.518 — \u003cstrong\u003e1.80mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.519 — \u003cstrong\u003e1.90mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.520 — \u003cstrong\u003e2.00mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.521 — \u003cstrong\u003e2.10mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.522 — \u003cstrong\u003e2.20mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.523 — \u003cstrong\u003e2.30mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eIndividual burs from this kit are also available for purchase by the piece. Related carbide bur kits include the Fig 446AU 70° Hart Bur set (BAU118.600) and the Fig 413AU Traditional Setting Bur set (BAU118.835).\u003c\/p\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582812225750,"sku":"BAU118.500","price":298.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-414au-carbide-90-hart-bur-332-shanks-kit-of-15-0-90mm-to-2-30mm-otto-frei.jpg?v=1719956845","url":"https:\/\/www.ottofrei.com\/products\/busch-fig-414au-carbide-90-hart-bur-kit-15-piece-0-90mm-2-30mm-3-32-shank","provider":"Otto Frei","version":"1.0","type":"link"}