{"id":256,"date":"2026-03-09T21:04:08","date_gmt":"2026-03-09T21:04:08","guid":{"rendered":"https:\/\/shop.dun.cx\/?post_type=product&#038;p=256"},"modified":"2026-03-09T21:05:20","modified_gmt":"2026-03-09T21:05:20","slug":"step-drill-bit-3-12-4-12-4-20-4-32-hss-titanium-cone-cutting-tools-woodworking-metal-drilling-hole-drill-bit","status":"publish","type":"product","link":"https:\/\/shop.dun.cx\/index.php\/product\/step-drill-bit-3-12-4-12-4-20-4-32-hss-titanium-cone-cutting-tools-woodworking-metal-drilling-hole-drill-bit\/","title":{"rendered":"Step Drill Bit 3-12\/4-12\/4-20\/4-32 Hss Titanium Cone Cutting Tools Woodworking Metal Drilling Hole Drill Bit"},"content":{"rendered":"<p><strong>Specifiction:\u00a0<\/strong><\/p>\n<ul>\n<li>Hss Titanium Step Drill Bit<\/li>\n<li><span style=\"font-weight: 400;\">Model: Titanium Coated HSS Stepped Drill Set<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Mechanism: Stepped Cone Drill with Titanium Nitride (TiN) Coating<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Material: High-Speed Steel (HSS 4241)<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Finish: Golden Titanium Coating (Anti-Rust &amp; Heat-Resistant)<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Sizes: <\/span>3-12mm,\u00a04-12mm, 4-20mm,\u00a04-32mm,\u00a0Set-1 ( 3-12mm,\u00a04-12mm,\u00a04-20mm ),\u00a0Set-2\u00a0(4-12mm, 4-20mm, 4-32mm )<\/li>\n<li><span style=\"font-weight: 400;\">Step Details: 3-12 (3,4,5,6,7,8,9,10,11,12), 4-12mm (9 steps: 4,5,6,7,8,9,10,11,12mm),\u00a0<\/span><span style=\"font-weight: 400;\"> 4-20mm (9 steps: 4,6,8,10,12,14,16,18,20mm),\u00a0<\/span><span style=\"font-weight: 400;\"> 4-32mm (15 steps: 4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm)_<\/span><b>Total: 40+ Sizes<\/b><\/li>\n<li><span style=\"font-weight: 400;\">Shank: 1\/4&#8243; Hex Shank (Impact-Ready)<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Max Thickness: 5mm (Steel), 8mm (Aluminum\/Wood\/Plastic)<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Usage: Metal Sheets, Wood, PVC, Aluminum, Copper, Acrylic, MDF<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Durability: Heavy Duty, Long-Lasting (5X Sharper than Uncoated)<\/span><\/li>\n<li>Step Cone Cutting Tools Woodworking Metal Drilling Hole Drill Bit<\/li>\n<\/ul>\n<p><strong><a href=\"https:\/\/dun.cx\/ovl4\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"size-full wp-image-5224 aligncenter\" src=\"https:\/\/dunia.com.bd\/wp-content\/uploads\/2022\/02\/buy-from-daraz-150.png\" alt=\"\u09a6\u09be\u09b0\u09be\u09af \u09a5\u09c7\u0995\u09c7 \u0995\u09bf\u09a8\u09a4\u09c7 \u0995\u09cd\u09b2\u09bf\u0995 \u0995\u09b0\u09c1\u09a8 Click on the link to buy from Daraz\" width=\"150\" height=\"82\" \/><\/a><\/strong><\/p>\n<p><b>Features:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Titanium Nitride Coating \u2013 Reduces friction &amp; heat, 5X longer life<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">3-Piece Stepped Design \u2013 Covers 40+ hole sizes (3mm to 32mm)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">High-Speed Steel (HSS) \u2013 Durable for metal, plastic, wood, aluminum<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Self-Starting Tip \u2013 No pilot hole needed<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Laser-Etched Markings \u2013 Clear size labels on every step<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">1\/4&#8243; Hex Shank \u2013 Fits impact drivers &amp; quick-change chucks<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Storage Case Included \u2013 Portable &amp; organized<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Stepped Drill Bit Set \u2013 the ultimate 3-piece titanium-coated HSS solution for clean, burr-free holes in metal, plastic, aluminum, and wood. Whether you&#8217;re a DIY enthusiast or a professional tradesperson in Bangladesh, this stepped drill bit set eliminates the need for multiple drill bits by offering 50+ hole sizes in one compact kit.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">This stepped drill bit set features premium High-Speed Steel (HSS) cores with a golden titanium nitride (TiN) coating that reduces friction, heat, and wear \u2013 ensuring your bits stay sharp up to 5X longer than standard uncoated bits. The self-starting tip design means no center punch or pilot hole is required, preventing bit walking and ensuring perfect hole placement every time.<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Each stepped drill bit set includes three versatile sizes: <span style=\"font-weight: 400;\">4-12mm (9 steps) \u2013 ideal for small electronics and thin sheet metal,\u00a0<\/span><span style=\"font-weight: 400;\">4-20mm (9 steps) \u2013 perfect for plumbing, HVAC, and automotive work,\u00a0<\/span><span style=\"font-weight: 400;\">4-32mm (15 steps) \u2013 heavy-duty for thick plates and large conduit holes<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Laser-etched size markings on every step ensure you&#8217;ll never guess the diameter again. The 1\/4&#8243; hex shank locks securely into impact drivers and quick-change chucks, making this stepped drill bit set compatible with all major drill brands (Bosch, Makita, Dewalt, etc.).<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">From enlarging existing holes to creating clean cuts in PVC, acrylic, stainless steel, or MDF \u2013 this stepped drill bit set does it all without tearing or chipping. The included durable plastic case keeps your bits organized and protected on the job site.<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Why choose this stepped drill bit set?<\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">No more buying 20+ individual bits<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Cleaner holes than twist drills<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Works on curved and flat surfaces<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Trusted by mechanics, electricians, and woodworkers across Bangladesh<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h1><strong style=\"font-size: 20.16px;\">What is the price of Step Drill Bit 3-12\/4-12\/4-20\/4-32 HSS Titanium Cone Cutting Tools Woodworking Metal Drilling Hole Drill Bit in Bangladesh?<\/strong><\/h1>\n<div>\n<p>The latest price of <strong>HSS Titanium <\/strong><strong>Step Drill Bit 332mm <\/strong>in Bangladesh <strong>starts from [product_price id=&#8221;332&#8243;] to [product_price id=&#8221;29435&#8243;] taka for 1 Pcs Drill Bit with selective size<\/strong>. You can buy this product<strong>\u00a0<\/strong>at a better and cheaper price from our website and also you can visit our warehouse between work hours 10am to 8pm.<\/p>\n<h1><strong>Buy Step Drill Bit 3-12\/4-12\/4-20\/4-32 HSS Titanium Cone Cutting Tools Woodworking Metal Drilling Hole Drill Bit<\/strong><strong>\u00a0<\/strong><strong>in Bangladesh from online at\u00a0<\/strong>[dunia_link]<strong>.<\/strong><\/h1>\n<p>In Bangladesh, you can get original <strong>HSS Titanium <\/strong><strong>Step Drill Bit 332mm<\/strong><strong>\u00a0<\/strong>From [dunia_link]<strong>\u00a0.<\/strong> We have few collection of latest [selected_category] to purchase. Order [parent_category] Online at our website Or Visit our warehouse to get your product at lowest price.<\/p>\n<h3><b>FAQ:<\/b><\/h3>\n<ol>\n<li><span style=\"font-weight: 400;\"><strong>What materials can this stepped drill bit set cut through?<\/strong><br \/>\n<\/span><span style=\"font-weight: 400;\">Mild steel (up to 5mm), stainless steel (up to 3mm), aluminum, copper, brass, PVC, acrylic, wood, MDF, and fiberglass.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><strong>Do I need a pilot hole with this stepped drill bit set?<\/strong><br \/>\n<\/span><span style=\"font-weight: 400;\">No! The split-point tip is self-centering and starts on contact \u2013 no center punch required.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><strong>Will this stepped drill bit set fit my impact driver?<\/strong><br \/>\n<\/span><span style=\"font-weight: 400;\">Yes \u2013 the 1\/4&#8243; hex shank is impact-rated and fits all standard quick-change chucks and impact drivers.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><strong>How many hole sizes does this stepped drill bit set cover?<\/strong><br \/>\n<\/span><span style=\"font-weight: 400;\">A total of 50+ sizes across three bits: 4-12mm: 4,5,6,7,8,9,10,11,12mm 4-20mm: 4,6,8,10,12,14,16,18,20mm 4-32mm: 4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><strong>Can I use this stepped drill bit set on stainless steel?<\/strong><br \/>\n<\/span><span style=\"font-weight: 400;\">Yes, but limit thickness to 2-3mm and use cutting oil\/lubricant for best results and longer bit life.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><strong>Is the titanium coating just for color?<\/strong><br \/>\n<\/span><span style=\"font-weight: 400;\">No \u2013 the TiN coating reduces heat and friction, increasing bit life by up to 5X compared to uncoated HSS.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><strong>Does this stepped drill bit set come with a warranty?<\/strong><br \/>\n<\/span><span style=\"font-weight: 400;\">No \u2013 Because of imports from other countries we can\u2019t provide any replacement warranty.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><strong>Can I enlarge an existing hole with this stepped drill bit set?<\/strong><br \/>\n<\/span><span style=\"font-weight: 400;\">Absolutely! Just align the correct step over the hole and drill \u2013 no need for hole saws.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><strong>How do I maintain this stepped drill bit set?<\/strong><br \/>\n<\/span><span style=\"font-weight: 400;\">Clean after use, apply light machine oil, and store in the provided case. Avoid excessive speed on hard metals.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><strong>Is this stepped drill bit set available with COD in Chittagong, Sylhet, or Khulna?<\/strong><br \/>\n<\/span><span style=\"font-weight: 400;\">Yes \u2013 Cash on Delivery available across all 64 districts of Bangladesh.<\/span><\/li>\n<\/ol>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<ul>\n<li>3-12mm (1pcs)<\/li>\n<li>4-12mm (1pcs)<\/li>\n<li>4-20mm (1pcs)<\/li>\n<li>4-32mm (1pcs)<\/li>\n<li>Set-1 ( 3-12mm)_1p , 4-12mm_1p, 4-20mm_1p\u00a0)<\/li>\n<li>Set-2 (4-12mm_1p, 4-20mm_1p, 4-32mm_1p\u00a0)<\/li>\n<\/ul>\n","protected":false},"featured_media":314,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[113],"product_tag":[44],"class_list":{"0":"post-256","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-drill-screwdriver-bit","7":"product_tag-drilling-tools-accessories","9":"first","10":"instock","11":"shipping-taxable","12":"purchasable","13":"product-type-variable"},"_links":{"self":[{"href":"https:\/\/shop.dun.cx\/index.php\/wp-json\/wp\/v2\/product\/256","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/shop.dun.cx\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/shop.dun.cx\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/shop.dun.cx\/index.php\/wp-json\/wp\/v2\/comments?post=256"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/shop.dun.cx\/index.php\/wp-json\/wp\/v2\/media\/314"}],"wp:attachment":[{"href":"https:\/\/shop.dun.cx\/index.php\/wp-json\/wp\/v2\/media?parent=256"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/shop.dun.cx\/index.php\/wp-json\/wp\/v2\/product_brand?post=256"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/shop.dun.cx\/index.php\/wp-json\/wp\/v2\/product_cat?post=256"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/shop.dun.cx\/index.php\/wp-json\/wp\/v2\/product_tag?post=256"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}