{"product_id":"hollow-drill-grinder-magnetic-drill-grinder-core-drill-sharpening-tool-mr-k2","title":"MRCM MR-K2 Annular Cutter Grinder Machine, Magnetic Core Drill Bit Sharpener (Up to 52mm, 1\/2 HP 220V, Laser Alignment \u0026 3 Index Plates)","description":"\u003cdiv class=\"product-description amazon-style\"\u003e\n  \u003ch3\u003eKey Features \u0026amp; Highlights (About This Item)\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e【High Precision \u0026amp; Wide Compatibility】\u003c\/strong\u003e Specially designed for resharpening hollow core drill bits and magnetic drill annular cutters up to 52 mm (2 inches) in diameter. Standard 19.05 mm (3\/4\") arbor bore fits most industry-standard magnetic drill cutters.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e【Built-in Laser Alignment System】\u003c\/strong\u003e Integrated precision laser pointer and calibrated scale enable quick, pinpoint cutter edge centering and tooth positioning without complicated manual guesswork.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e【Powerful \u0026amp; Stable Performance】\u003c\/strong\u003e Driven by a heavy-duty 1\/2 HP (375W), 220V industrial motor running at 2,800 RPM, delivering smooth grinding torque and burr-free razor-sharp cutting edges.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e【Heavy-Duty Cast Iron Construction】\u003c\/strong\u003e Sturdy 30 kg all-metal cast structure dampens vibrations during operation. Features 70 mm grinding head stroke and 170 mm headstock stroke for smooth, flexible feeding.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e【Complete Professional Toolkit】\u003c\/strong\u003e Supplied with 1x MR-K2 grinder machine, 1x grinding wheel (Φ125 × Φ25 mm) with protective guard, 3x indexing dividing plates, 3x Allen wrenches, and an operation manual.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eProduct Overview\u003c\/h3\u003e\n  \u003cp\u003eThe \u003cstrong\u003eMRCM MR-K2\u003c\/strong\u003e is a dedicated industrial annular cutter grinder built to restore dull high-speed steel (HSS) and carbide-tipped magnetic core drills. Ideal for steel fabrication, machining shops, construction sites, and tool maintenance rooms, this machine quickly restores cutting geometry, prolongs cutter lifespan, and significantly reduces new tooling costs.\u003c\/p\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n  \u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 10px; margin-bottom: 15px;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold; width: 40%;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003eMR-K2\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eGrinding Capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003eUp to 52 mm (approx. 2\") Diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eArbor Bore Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e19.05 mm (3\/4\")\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eMotor Power \u0026amp; Voltage\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e1\/2 HP (375 W), 220V\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eGrinding Wheel Speed\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e2,800 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eGrinding Wheel Size\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003eΦ125 mm × Φ25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eGrinding Head Travel\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eHeadstock Travel\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e170 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eMachine Dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e410 × 275 × 280 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNet \/ Gross Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e30 kg \/ 33 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003ePackage Contents\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 × MR-K2 Hollow Core Drill Grinder\u003c\/li\u003e\n    \u003cli\u003e1 × Grinding Wheel (Φ125 × Φ25 mm) with Safety Shield\u003c\/li\u003e\n    \u003cli\u003e3 × Indexing Dividing Plates\u003c\/li\u003e\n    \u003cli\u003e3 × Hex Wrenches\u003c\/li\u003e\n    \u003cli\u003e1 × User Manual\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eQuick Operation Steps\u003c\/h3\u003e\n  \u003col\u003e\n    \u003cli\u003eMount the appropriate indexing plate; lock headstock horizontally at 0° and vertically at 90°.\u003c\/li\u003e\n    \u003cli\u003eSecure cutter bit firmly into the 19.05 mm fixture.\u003c\/li\u003e\n    \u003cli\u003eTurn on and position the laser alignment pen so the laser line targets the cutter blade edge.\u003c\/li\u003e\n    \u003cli\u003eRotate cutter to align blade precisely with laser guide, then mark the index tooth.\u003c\/li\u003e\n    \u003cli\u003eLock clamp screws and advance the grinding wheel using the feed handwheel.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/div\u003e","brand":"GOOGmachine","offers":[{"title":"Default Title","offer_id":51243098046567,"sku":null,"price":1881.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0042\/7606\/0263\/files\/d6b2a866c5ab032e4f1a4d309799bed1.jpg?v=1793928905","url":"https:\/\/googmachine.com\/products\/hollow-drill-grinder-magnetic-drill-grinder-core-drill-sharpening-tool-mr-k2","provider":"GOOGmachine","version":"1.0","type":"link"}