{"product_id":"10-pack-tungsten-carbide-pcb-micro-drill-bits-cnc-3175mm","title":"10-Pack Tungsten Carbide PCB Micro Drill Bits | CNC 3.175mm","description":"\n\u003ch2\u003e10-Pack Micro PCB Drill Bits – Tungsten Carbide, 3.175mm Shank\u003c\/h2\u003e\n\u003cp\u003eTake your circuit board projects to the next level with this precision-engineered 10-piece PCB drill bit set. Crafted from solid \u003cstrong\u003etungsten carbide\u003c\/strong\u003e, these micro drill bits are designed for clean, accurate holes in printed circuit boards, composite materials, and more — making them an essential addition to any electronics workbench or CNC setup.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose These PCB Drill Bits?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision Machined:\u003c\/strong\u003e Manufactured using high-accuracy equipment for consistent sizing and reliable performance across every bit in the set.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuperior Cutting Performance:\u003c\/strong\u003e Excellent milling and cutting efficiency means faster drilling with less effort and reduced bit breakage.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTungsten Carbide Construction:\u003c\/strong\u003e Exceptional hardness, wear resistance, and strength with outstanding anti-bending properties for longer service life.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEfficient Chip Removal:\u003c\/strong\u003e Wide chip-clearance flutes reduce heat buildup and minimize debris, keeping your work clean and your holes smooth.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSharp Cutting Edge:\u003c\/strong\u003e Reduces cutting force for a lower breakage rate and noticeably improved hole-wall quality — no more ragged edges.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSymmetrical Blade Design:\u003c\/strong\u003e Ensures balanced, offset-free drilling so your holes land exactly where you need them every time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTungsten Carbide\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.175 mm (1\/8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 pcs (multi-specification set)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatible Materials \u0026amp; Applications\u003c\/h3\u003e\n\u003cp\u003eThese micro drill bits are suitable for a wide range of materials, including:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStandard FR-4 and CEM-3 PCB boards\u003c\/li\u003e\n  \u003cli\u003eEnvironmental protection boards\u003c\/li\u003e\n  \u003cli\u003eSMT and CNC machining applications\u003c\/li\u003e\n  \u003cli\u003ePlastic, carbon fiber, and composite boards\u003c\/li\u003e\n  \u003cli\u003eMolds and general hobby electronics work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e10 × Tungsten Carbide PCB Micro Drill Bits (multi-specification)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/3-jaw-keyless-ratchet-drill-chuck-0-8-10mm-self-locking\"\u003e3-Jaw Keyless Ratchet Drill Chuck 0.8–10mm Self-Locking\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/50pcs-nickel-sheets-18650-lithium-battery-spot-welding\"\u003e50Pcs Nickel Sheets for 18650 Battery Spot Welding Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/aluminum-leather-edge-burnishing-polishing-tool-diy-craft\"\u003eAluminum Leather Edge Burnishing \u0026amp; Polishing Tool – DIY Craft\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What shank size are these PCB drill bits, and will they fit my CNC machine or rotary tool?\u003c\/h4\u003e\n\u003cp\u003eA: Each drill bit features a standard 3.175 mm (1\/8\") shank diameter, which is widely compatible with most desktop CNC routers, PCB drilling machines, and rotary tools that accept 1\/8\" collets or chucks.\u003c\/p\u003e\n\u003ch4\u003eQ: What types of circuit boards can these micro drill bits be used on?\u003c\/h4\u003e\n\u003cp\u003eA: These tungsten carbide micro drill bits are designed for use on standard FR-4 and CEM-3 PCB materials, environmental protection boards, composite boards, carbon fiber panels, plastics, and molds — making them highly versatile for electronics hobbyists and professionals alike.\u003c\/p\u003e\n\u003ch4\u003eQ: How many drill bits are included and are they different sizes?\u003c\/h4\u003e\n\u003cp\u003eA: The set includes 10 pieces in multiple specifications (sizes), giving you a range of diameters to cover various PCB hole requirements in a single convenient package.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I minimize breakage when using these micro drill bits?\u003c\/h4\u003e\n\u003cp\u003eA: Use a consistent, moderate feed rate and keep your spindle speed within the recommended range for carbide bits on PCB material. The symmetrical blade design and sharp cutting edge on these bits naturally reduce cutting force and breakage risk — just avoid excessive lateral pressure during drilling.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What shank size are these PCB drill bits, and will they fit my CNC machine or rotary tool?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Each drill bit features a standard 3.175 mm (1\/8\\\") shank diameter, which is widely compatible with most desktop CNC routers, PCB drilling machines, and rotary tools that accept 1\/8\\\" collets or chucks.\"}}, {\"@type\": \"Question\", \"name\": \"What types of circuit boards can these micro drill bits be used on?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These tungsten carbide micro drill bits are designed for use on standard FR-4 and CEM-3 PCB materials, environmental protection boards, composite boards, carbon fiber panels, plastics, and molds — making them highly versatile for electronics hobbyists and professionals alike.\"}}, {\"@type\": \"Question\", \"name\": \"How many drill bits are included and are they different sizes?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The set includes 10 pieces in multiple specifications (sizes), giving you a range of diameters to cover various PCB hole requirements in a single convenient package.\"}}, {\"@type\": \"Question\", \"name\": \"How do I minimize breakage when using these micro drill bits?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use a consistent, moderate feed rate and keep your spindle speed within the recommended range for carbide bits on PCB material. 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