{"product_id":"yftool-carbide-drill-bit-set-for-hardened-stainless-steel-4-pcs-135-point","title":"YFTOOL Carbide Drill Bit Set for Hardened \u0026 Stainless Steel – 4 Pcs, 135° Point","description":"\u003ch2\u003eHigh-Performance Carbide Drill Bit Set for Tough Materials\u003c\/h2\u003e\n\u003cp\u003eMeet the YFTOOL carbide drill bit set, engineered to tackle hardened steel, stainless steel, and hot-working steels with reliable precision. The 4-piece collection covers common hole diameters from 1\/16 in to 1\/4 in, offering consistent results across delicate tasks and demanding fixtures in both CNC and manual work.\u003c\/p\u003e\n\u003cp\u003eThe design emphasizes an accurate start and steadier cuts. The 135° point angle helps prevent wandering when drilling tougher materials, while the obtuse tip geometry reduces cutting forces to support stable cuts and longer tool life.\u003c\/p\u003e\n\u003cp\u003eTiAlSi coating marks an upgrade over traditional finishes by delivering higher surface hardness and improved oxidation resistance. This coating is designed to withstand the heat and abrasion associated with stainless steels and high-hardness steels, helping maintain cutting performance over time.\u003c\/p\u003e\n\u003cp\u003eCrafted from solid carbide with a fine 0.4 micron grain, these bits prioritize rigidity and wear resistance. The result is reduced deflection and steady tolerance control, supporting repeatable holes in challenging metals.\u003c\/p\u003e\n\u003ch3\u003eChip Control, Heat Management, and Precision\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e30° helix angle promotes efficient chip evacuation, helping clear long chips and limit heat buildup.\u003c\/li\u003e\n  \u003cli\u003e135° tip together with short chips reduces blockage, supporting smoother drilling on hard materials.\u003c\/li\u003e\n  \u003cli\u003e0.4 micron K30 carbide substrate delivers wear resistance and rigidity for repeated cuts.\u003c\/li\u003e\n  \u003cli\u003eFine-tuned tolerance of ±0.003 mm aims for tight hole quality in precision tasks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePractical Uses and What’s in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFour diameters: 1\/16 in, 1\/8 in, 3\/16 in, and 1\/4 in, ideal for delicate fits and prototyping.\u003c\/li\u003e\n  \u003cli\u003eSolid carbide construction with a durable coating for high hardness materials and repeated use.\u003c\/li\u003e\n  \u003cli\u003eDesigned for reliability in CNC setups and hand-held drilling where stability matters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: Actual results depend on your machine, workpiece, and technique. The set suggests potential benefits such as easier starts, consistent holes, and longer tool life under demanding materials, without guaranteeing outcomes for every task.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What sizes are included in the YFTOOL Carbide Drill Bit Set?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The set includes 1\/16, 1\/8, 3\/16, and 1\/4 inch carbide bits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What materials are these drill bits suited for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Ideal for stainless steel and hot-working steels, plus other high-hardness metals requiring precise holes.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"YFTOOL","offers":[{"title":"Default Title","offer_id":53086146691183,"sku":"B0FPWVM294","price":65.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0598\/3087\/files\/yftool-carbide-drill-bit-1-16-inch-tip-closeup.jpg?v=1778634263","url":"https:\/\/taskholt.com\/products\/yftool-carbide-drill-bit-set-for-hardened-stainless-steel-4-pcs-135-point","provider":"TaskHolt","version":"1.0","type":"link"}