{"title":"Diamond Grinding Discs and Lapping Films","description":"\u003cp\u003eDiamond grinding and lapping discs for fine, flat, controlled material removal on hard materials. Our diamond discs are supplied in metal-bond and resin-bond types, in grits from 120 (P120) through 1200 (P4000), with PSA or magnetic backing, comparable to the diamond grinding and lapping products from Buehler, Struers, and Allied High Tech, typically 20 to 40 percent lower in price. Custom sizes, grits, and films are made to order. Used across metallography, ceramics, optics, and tool-and-die lapping.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eMetal Bond or Resin Bond?\u003c\/h2\u003e\n\u003cp\u003eBoth types hold diamond in a bonded matrix and remove material at a high rate under lubricant, but they wear and finish differently:\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13.5px; margin: 16px 0;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #222A6F; color: #fff;\"\u003e\n\u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eBond\u003c\/th\u003e\n\u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eBehavior\u003c\/th\u003e\n\u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f8f9fc;\"\u003e\n\u003ctd style=\"padding: 9px 14px; border-bottom: 1px solid #e5e9f0;\"\u003e\u003cstrong\u003eMetal bond\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; border-bottom: 1px solid #e5e9f0;\"\u003eHolds its form and diamond charge the longest; highest removal rate and flatness retention; longest life and lowest cost per sample.\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; border-bottom: 1px solid #e5e9f0;\"\u003eVery hard materials — ceramics, cemented carbides, hardened tool steels — and high-throughput planar grinding.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 14px;\"\u003e\u003cstrong\u003eResin bond\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px;\"\u003eSofter matrix (often channeled to clear debris) that gives a finer, lower-damage surface as it releases diamond.\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px;\"\u003eFiner grinding steps and heat- or damage-sensitive materials transitioning into polishing.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGrit and Step\u003c\/h2\u003e\n\u003cp\u003eGrits run from 120 (P120) for planar grinding through 1200 (P4000) for fine grinding before polishing. Step down through the grit sequence without skipping a grade, removing the prior scratch pattern completely at each step. One metal-bond disc can replace several \u003ca href=\"\/collections\/silicon-carbide-grinding-discs\"\u003esilicon carbide paper\u003c\/a\u003e steps on hard materials, holding flatness across many samples and lowering cost per use. Both bonds are available with PSA or magnetic backing to fit standard platens.\u003c\/p\u003e\n\u003ch2\u003eWhen to Use a Diamond Disc Instead of SiC Paper\u003c\/h2\u003e\n\u003cp\u003eAbove roughly HRC 60 (HV 700) — cemented carbides, technical ceramics, silicon carbide, boron carbide — silicon carbide paper wears too quickly and produces excessive relief. A diamond grinding disc removes material efficiently, holds flatness, and lasts far longer, which is why it is the standard grinding medium for hard-material workflows and a common replacement for the coarse SiC steps.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eMetal bond or resin bond — which do I need?\u003c\/h3\u003e\n\u003cp\u003eUse a metal-bond disc for the longest life and best flatness on very hard materials (ceramics, carbides, hardened steels) and for high-throughput planar grinding. Use a resin-bond disc for the finer grinding steps and for heat- or damage-sensitive materials, where its softer matrix leaves a lower-damage surface as it transitions the sample toward polishing.\u003c\/p\u003e\n\u003ch3\u003eWhen should I use a diamond grinding disc instead of SiC paper?\u003c\/h3\u003e\n\u003cp\u003eUse a diamond disc above about HRC 60 — cemented carbides, technical ceramics, and other very hard materials — where SiC paper wears out quickly and causes relief. The diamond disc holds flatness, removes material efficiently, and lasts across many samples, lowering cost per sample on hard-material workflows. Grits run 120 (P120) through 1200 (P4000).\u003c\/p\u003e\n\u003ch3\u003eDo you make custom sizes and grades?\u003c\/h3\u003e\n\u003cp\u003eYes. Custom diamond discs, films, grits, bonds, and backings are made to order — specify your platen diameter, grit, bond type, and backing (PSA or magnetic) and we will confirm the specification.\u003c\/p\u003e\n","products":[{"product_id":"diamond-grinding-disc-metal-and-resin-bond","title":"Diamond Grinding Disc - Metal and Resin Bond","description":"\u003ch2\u003eCompatibility and Equivalents\u003c\/h2\u003e\n\u003cp\u003eMade for the same coarse and fine grinding steps as these brand products:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuehler\u003c\/strong\u003e — Diamond Grinding Disc (DGD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStruers\u003c\/strong\u003e — MD-Piano\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAllied High Tech\u003c\/strong\u003e — diamond grinding disc\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAvailable in metal-bond and resin-bond with PSA-adhesive and magnetic backing. Fits Buehler, Struers, LECO, Allied, and PACE systems with no change to your process. It is a comparable product for the same step — not a branded or drop-in item.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSame grading, typically 20–40% less.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"\/pages\/free-sample-request\"\u003eRequest a free sample\u003c\/a\u003e\u003c\/strong\u003e and test it on your own equipment.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eDiamond Grinding Discs\u003c\/h2\u003e\n\u003ch3\u003eWhat This Product Is\u003c\/h3\u003e\n\u003cp\u003eDiamond grinding discs are rigid abrasive consumables used during \u003cstrong\u003emetallographic grinding\u003c\/strong\u003e to remove material, establish flatness, and prepare specimens for polishing. These discs use diamond abrasives bonded to a durable substrate, providing consistent and long-lasting grinding performance.\u003c\/p\u003e\n\u003cp\u003eCompared to traditional grinding papers, diamond grinding discs are designed for extended use, improved durability, and more repeatable surface preparation across multiple samples.\u003c\/p\u003e\n\u003ch3\u003eIntended Use in Metallography\u003c\/h3\u003e\n\u003cp\u003eDiamond grinding discs are used during \u003cstrong\u003eplanar and fine grinding stages\u003c\/strong\u003e, particularly when consistent material removal and repeatability are required. They are commonly used in workflows where high sample throughput or demanding materials make disposable papers less efficient.\u003c\/p\u003e\n\u003cp\u003eDiamond grinding discs are commonly selected when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh durability is required across multiple samples\u003c\/li\u003e\n\u003cli\u003eConsistent grinding performance is needed with minimal variation\u003c\/li\u003e\n\u003cli\u003eMaterials are hard, abrasive, or difficult to grind using conventional papers\u003c\/li\u003e\n\u003cli\u003eReduced consumable changeover is desired in automated systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cp\u003eDiamond grinding discs are commonly used when preparing:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHardened steels and tool steels\u003c\/li\u003e\n\u003cli\u003eCarbide-containing materials\u003c\/li\u003e\n\u003cli\u003eCeramics and composite materials\u003c\/li\u003e\n\u003cli\u003eThermally sprayed or wear-resistant coatings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBeyond metallography, diamond grinding discs are also used in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePetrography: grinding hard minerals and thin sections\u003c\/li\u003e\n\u003cli\u003eCeramics and hard advanced or composite materials\u003c\/li\u003e\n\u003cli\u003eTool, die, and mold work and general hard-material grinding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePerformance depends on diamond concentration, applied pressure, lubrication, and proper progression through grinding steps.\u003c\/p\u003e\n\u003ch3\u003eGrinding Mechanism and Performance Characteristics\u003c\/h3\u003e\n\u003cp\u003eDiamond grinding discs use fixed diamond abrasives bonded to a rigid surface. Unlike coated abrasive papers, the abrasive layer does not degrade rapidly, allowing for consistent cutting behavior over extended use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixed abrasive structure:\u003c\/strong\u003e Provides stable and repeatable grinding performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh wear resistance:\u003c\/strong\u003e Suitable for grinding hard or abrasive materials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced variability:\u003c\/strong\u003e Maintains consistent surface conditions across multiple samples\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese characteristics make diamond grinding discs particularly effective in workflows requiring repeatability and control.\u003c\/p\u003e\n\u003ch3\u003eWhen This Product Is NOT Ideal\u003c\/h3\u003e\n\u003cp\u003eDiamond grinding discs may \u003cstrong\u003enot\u003c\/strong\u003e be the best choice when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLow-volume or occasional sample preparation does not justify higher upfront consumable cost\u003c\/li\u003e\n\u003cli\u003eApplications require very flexible or compliant grinding surfaces\u003c\/li\u003e\n\u003cli\u003eFine, low-pressure finishing steps are needed where coated abrasives provide sufficient control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn these cases, silicon carbide grinding papers may provide a more practical solution.\u003c\/p\u003e\n\u003ch3\u003eWhere This Fits in the Preparation Process\u003c\/h3\u003e\n\u003cp\u003eDiamond grinding discs are typically used:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAfter\u003c\/strong\u003e sectioning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBefore\u003c\/strong\u003e polishing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThey are often used as a replacement for multiple grinding paper steps, helping to streamline workflows while maintaining consistent surface preparation.\u003c\/p\u003e\n\u003ch3\u003eKey Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAbrasive type: Diamond\u003c\/li\u003e\n\u003cli\u003eForm: Rigid grinding disc\u003c\/li\u003e\n\u003cli\u003eApplication: Metallographic grinding\u003c\/li\u003e\n\u003cli\u003eUse: Manual and automated preparation systems\u003c\/li\u003e\n\u003cli\u003eCompatibility: Used with compatible grinding platens and mounting systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRefer to individual product listings for available sizes, bonding types, and mounting options.\u003c\/p\u003e\n\u003ch3\u003ePerformance and Quality Positioning\u003c\/h3\u003e\n\u003cp\u003eDiamond grinding discs are designed to provide consistent material removal, stable grinding performance, and extended service life across metallographic preparation workflows.\u003c\/p\u003e\n\u003cp\u003eThey are comparable in application and performance to diamond grinding solutions offered by established suppliers such as Struers, Allied High Tech, and Buehler, delivering similar preparation outcomes when used within proper grinding procedures.\u003c\/p\u003e\n\u003ch3\u003eBest-Practice Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse consistent pressure and proper lubrication to maintain stable grinding conditions\u003c\/li\u003e\n\u003cli\u003eClean discs regularly to prevent loading and maintain cutting efficiency\u003c\/li\u003e\n\u003cli\u003eMatch disc selection to material hardness and required removal rate\u003c\/li\u003e\n\u003cli\u003eIntegrate diamond grinding discs into a structured preparation sequence for optimal results\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eWhat is the advantage of diamond grinding discs over silicon carbide paper?\u003c\/h4\u003e\n\u003cp\u003eDiamond grinding discs offer significantly higher durability and more consistent performance over time. While silicon carbide paper degrades with use, diamond discs maintain a stable abrasive surface, making them more suitable for high-throughput or repeatable workflows.\u003c\/p\u003e\n\u003ch4\u003eWhen should I use diamond grinding discs instead of grinding paper?\u003c\/h4\u003e\n\u003cp\u003eDiamond grinding discs are typically preferred when working with hard, abrasive, or high-volume applications where consistent performance and reduced consumable changes are important.\u003c\/p\u003e\n\u003ch4\u003eDo diamond grinding discs replace multiple grinding steps?\u003c\/h4\u003e\n\u003cp\u003eIn some workflows, diamond grinding discs can reduce the number of grinding steps required. However, proper progression is still necessary to achieve the desired surface condition before polishing.\u003c\/p\u003e\n\u003ch4\u003eHow long do diamond grinding discs last?\u003c\/h4\u003e\n\u003cp\u003eService life depends on material type, usage conditions, and maintenance. Compared to coated abrasives, diamond discs generally offer significantly longer usable life.\u003c\/p\u003e\n\u003ch4\u003eCan diamond grinding discs be used for all materials?\u003c\/h4\u003e\n\u003cp\u003eThey are suitable for a wide range of materials, particularly hard and wear-resistant ones. However, softer materials may require different grinding approaches depending on the desired surface finish.\u003c\/p\u003e\n\u003ch4\u003eDo diamond grinding discs require lubrication?\u003c\/h4\u003e\n\u003cp\u003eYes. Lubrication helps reduce heat, remove debris, and maintain consistent grinding performance.\u003c\/p\u003e\n\u003ch4\u003eHow do I maintain consistent results when using diamond grinding discs?\u003c\/h4\u003e\n\u003cp\u003eConsistency is achieved through proper cleaning, stable pressure application, correct disc selection, and maintaining a structured preparation sequence.\u003c\/p\u003e\n\u003ch4\u003eWhy is my grinding rate decreasing over time?\u003c\/h4\u003e\n\u003cp\u003eReduced grinding efficiency can result from debris loading, improper cleaning, or changes in operating conditions. Regular cleaning and proper use help maintain performance.\u003c\/p\u003e\n\u003ch4\u003eCan these discs be used in automated preparation systems?\u003c\/h4\u003e\n\u003cp\u003eYes. Diamond grinding discs are commonly used in automated metallographic preparation systems where repeatability and durability are required.\u003c\/p\u003e\n\u003ch4\u003eCan diamond grinding discs be used outside metallography?\u003c\/h4\u003e\n\u003cp\u003eYes. Their durable fixed-diamond surface suits hard, abrasive materials across petrography, ceramics and advanced materials, and tool-and-die and general hard-material grinding, not only metallography.\u003c\/p\u003e","brand":"Beta Diamond Products","offers":[{"title":"120 (P120) \/ Metal Bond \/ Magnetic Backing","offer_id":43128328847496,"sku":"","price":150.0,"currency_code":"USD","in_stock":true},{"title":"120 (P120) \/ Metal Bond \/ PSA Backing","offer_id":43128328880264,"sku":"","price":140.0,"currency_code":"USD","in_stock":true},{"title":"180 (P180) \/ Metal Bond \/ Magnetic Backing","offer_id":43128328978568,"sku":"","price":150.0,"currency_code":"USD","in_stock":true},{"title":"180 (P180) \/ Metal Bond \/ PSA Backing","offer_id":43128329011336,"sku":"","price":140.0,"currency_code":"USD","in_stock":true},{"title":"180 (P180) \/ Resin Bond \/ Magnetic Backing","offer_id":43128329044104,"sku":"","price":95.0,"currency_code":"USD","in_stock":true},{"title":"180 (P180) \/ Resin Bond \/ PSA Backing","offer_id":43128329076872,"sku":"","price":85.0,"currency_code":"USD","in_stock":true},{"title":"240 (P280) \/ Resin Bond \/ Magnetic Backing","offer_id":43128329175176,"sku":"","price":95.0,"currency_code":"USD","in_stock":true},{"title":"240 (P280) \/ Resin Bond \/ PSA Backing","offer_id":43128329207944,"sku":"","price":85.0,"currency_code":"USD","in_stock":true},{"title":"320 (P400) \/ Metal Bond \/ Magnetic Backing","offer_id":43128329240712,"sku":"","price":150.0,"currency_code":"USD","in_stock":true},{"title":"320 (P400) \/ Metal Bond \/ PSA Backing","offer_id":43128329273480,"sku":"","price":140.0,"currency_code":"USD","in_stock":true},{"title":"320 (P400) \/ Resin Bond \/ Magnetic Backing","offer_id":43128329306248,"sku":"","price":95.0,"currency_code":"USD","in_stock":true},{"title":"320 (P400) \/ Resin Bond \/ PSA Backing","offer_id":43128329339016,"sku":"","price":85.0,"currency_code":"USD","in_stock":true},{"title":"400 (P800) \/ Resin Bond \/ Magnetic Backing","offer_id":43128329437320,"sku":"","price":95.0,"currency_code":"USD","in_stock":true},{"title":"400 (P800) \/ Resin Bond \/ PSA Backing","offer_id":43128329470088,"sku":"","price":85.0,"currency_code":"USD","in_stock":true},{"title":"600 (P1200) \/ Metal Bond \/ Magnetic Backing","offer_id":43128329502856,"sku":"","price":150.0,"currency_code":"USD","in_stock":true},{"title":"600 (P1200) \/ Metal Bond \/ PSA Backing","offer_id":43128329535624,"sku":"","price":140.0,"currency_code":"USD","in_stock":true},{"title":"600 (P1200) \/ Resin Bond \/ Magnetic Backing","offer_id":43128329568392,"sku":"","price":95.0,"currency_code":"USD","in_stock":true},{"title":"600 (P1200) \/ Resin Bond \/ PSA Backing","offer_id":43128329601160,"sku":"","price":85.0,"currency_code":"USD","in_stock":true},{"title":"800 (P2400) \/ Metal Bond \/ Magnetic Backing","offer_id":43128329633928,"sku":"","price":150.0,"currency_code":"USD","in_stock":true},{"title":"800 (P2400) \/ Metal Bond \/ PSA Backing","offer_id":43128329666696,"sku":"","price":140.0,"currency_code":"USD","in_stock":true},{"title":"800 (P2400) \/ Resin Bond \/ Magnetic Backing","offer_id":43128329699464,"sku":"","price":95.0,"currency_code":"USD","in_stock":true},{"title":"800 (P2400) \/ Resin Bond \/ PSA Backing","offer_id":43128329732232,"sku":"","price":85.0,"currency_code":"USD","in_stock":true},{"title":"1200 (P4000) \/ Resin Bond \/ Magnetic Backing","offer_id":43128329830536,"sku":"","price":95.0,"currency_code":"USD","in_stock":true},{"title":"1200 (P4000) \/ Resin Bond \/ PSA Backing","offer_id":43128329863304,"sku":"","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1359\/5151\/files\/Diamond_Grinding_Discs_Group.jpg?v=1745985520"}],"url":"https:\/\/betadiamond.com\/collections\/diamond-grinding-discs-lapping-film.oembed","provider":"Beta Diamond Products","version":"1.0","type":"link"}