{"product_id":"5pc-triangular-shank-drill-bit-set-alloy-steel-multi-material","title":"5-Piece Triangular Shank Drill Bit Set — Alloy Steel, Multi-Material (6–12mm)","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eTriangular Shank Drill Bit Set — One Kit for Tile, Glass, Concrete \u0026amp; Metal\u003c\/h2\u003e\n\u003cp\u003eSwitching between drill bits every time you change materials slows down every project. Whether you're a weekend DIYer hanging shelves through tile, a contractor drilling anchors into brick, or a hobbyist working with mixed materials, having a reliable multi-material drill bit set on hand means fewer trips to the toolbox and more time getting things done.\u003c\/p\u003e\n\u003cp\u003eThis 5-piece triangular shank drill bit set is made of alloy steel, hardened, with a 135° split-point tip. Each set includes five bits in the following diameters: 6mm (15\/64″), 6mm (15\/64″), 8mm (5\/16″), 10mm (25\/64″), and 12mm (15\/32″). The triangular (3-flat) shank prevents slipping in standard drill chucks and rotary tool collets. The outer-cold cooling design helps manage heat during extended drilling sessions.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include drilling through ceramic tile and glass for bathroom or kitchen fixtures, boring anchor holes in concrete and brick walls for mounting hardware, and cutting clean holes in steel, aluminum, and iron for fabrication or repair work — all common tasks where a versatile multi-material drill bit set saves significant time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔧\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits standard keyless and keyed drill chucks and most rotary tools. Triangular shank — not compatible with SDS-plus or SDS-max chucks.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These Triangular Shank Multi-Material Drill Bits\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔺\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eAnti-Slip Triangular Shank\u003c\/strong\u003e — The 3-flat triangular shank locks securely in standard drill chucks, eliminating the bit slippage common with round-shank bits during high-torque drilling.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e135° Split-Point Tip\u003c\/strong\u003e — The wider tip angle self-centers on hard surfaces like tile and metal, reducing walking and the need for a center punch on most materials.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🧱\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eMulti-Material Capability\u003c\/strong\u003e — Engineered to drill through ceramic tile, glass, concrete, brick, masonry, steel, aluminum, iron, wood, and plastic — reducing the need for multiple specialized bit sets.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e❄️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eOuter-Cold Cooling Design\u003c\/strong\u003e — The flute geometry promotes outer-edge cooling during drilling, helping manage heat buildup when working through dense materials like concrete or metal.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e5-Piece Size Range (6–12mm)\u003c\/strong\u003e — Covers the most common hole sizes for anchors, screws, and fixtures, from 6mm (15\/64″) up to 12mm (15\/32″), so you're ready for most residential and light commercial tasks.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🧳\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eCompact \u0026amp; Portable\u003c\/strong\u003e — The slim profile and consistent sizing make this set easy to store in a standard tool bag or drill bit organizer without taking up extra space.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — Triangular Shank Drill Bit Set\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAlloy Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Type\u003c\/th\u003e\n\u003ctd\u003eTriangular (3-flat)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBlade Tip Angle\u003c\/th\u003e\n\u003ctd\u003e135°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCooling Type\u003c\/th\u003e\n\u003ctd\u003eOuter Cold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePiece Count\u003c\/th\u003e\n\u003ctd\u003e5 pcs per set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded Sizes\u003c\/th\u003e\n\u003ctd\u003e6mm (15\/64″) × 2, 8mm (5\/16″) × 1, 10mm (25\/64″) × 1, 12mm (15\/32″) × 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Tools\u003c\/th\u003e\n\u003ctd\u003eStandard drill, rotary tool (keyless or keyed chuck)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplicable Materials\u003c\/th\u003e\n\u003ctd\u003eCeramic tile, glass, concrete, brick, masonry, steel, aluminum, iron, wood, plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBit Length\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eBright\/polished alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e \u003cstrong\u003eNote:\u003c\/strong\u003e Always verify your drill chuck accepts a triangular shank before ordering. If unsure, contact us, and we'll help you confirm compatibility.\u003c\/div\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat sizes are included in this drill bit set?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThis set includes five bits: 6mm (15\/64″), 6mm (15\/64″), 8mm (5\/16″), 10mm (25\/64″), and 12mm (15\/32″) — one of each size, with two 6mm bits included for convenience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right bit size for my project?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eGenerally, match the bit diameter to your anchor or screw specification. For wall anchors, the bit size typically equals the anchor's outer diameter. For through-holes, match to your bolt or fastener diameter. When in doubt, start smaller and test on scrap material first. Common conversions: 6mm ≈ 15\/64″, 8mm ≈ 5\/16″, 10mm ≈ 25\/64″, 12mm ≈ 15\/32″.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003ethe diameter. What materials can these drill bits cut through?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese bits are designed for multi-material use including ceramic tile, glass, concrete, brick, masonry, steel, copper, stainless steel, aluminum, iron, wood, and plastic. Always use the appropriate drill speed for each material — slower RPM for hard materials like tile and metal, higher RPM for wood and plastic.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e,What type of drill is compatible with these bits?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe triangular (3-flat) shank fits standard keyless and keyed drill chucks, as well as most rotary tools. It is \u003cstrong\u003enot\u003c\/strong\u003e designed for SDS-plus or SDS-max chucks. If your drill uses an SDS system, this set will not be compatible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these bits outdoors or in wet conditions?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese bits are made from alloy steel, which is not stainless. For occasional outdoor use, they will generally perform well. For prolonged exposure to moisture, we recommend wiping the bits dry and applying a light coat of machine oil after use to prevent surface rust. They are not intended for continuous wet or submerged applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the 135° tip angle, and why does it matter?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe 135° split-point tip is wider than a standard 118° tip. This design reduces the tendency for the bit to \"walk\" across hard, smooth surfaces like tile or metal when starting a hole. In most cases, you can begin drilling without a center punch, which saves time and reduces the risk of surface cracking on tile or glass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow durable are these bits — will they hold up on hard materials like concrete?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMade from hardened alloy steel, these bits are generally well-suited for DIY and light professional use on concrete, brick, and masonry. For best results on hard materials, use a moderate drill speed, apply steady pressure without forcing, and allow the bit to cool periodically. Forcing the bit or running at excessive speed will shorten its lifespan on any hard material.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your size above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"Default Title","offer_id":52285522608402,"sku":"US-TZ0070","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-01_7614bb1c-6261-4a4e-a1ad-542709f36c88.jpg?v=1780503143","url":"https:\/\/homediyer.com\/products\/5pc-triangular-shank-drill-bit-set-alloy-steel-multi-material","provider":"HomeDIYer","version":"1.0","type":"link"}