{"product_id":"hss-titanium-step-drill-bit-set-3-12-4-12-4-20mm","title":"SLADE HSS Titanium Step Drill Bit Set 3-12 4-12 4-20mm","description":"\n\u003ch2\u003eSLADE 3-Piece HSS Titanium Coated Step Drill Bit Set\u003c\/h2\u003e\n\u003cp\u003eTackle any drilling job with confidence using this professional-grade set of three titanium-coated High Speed Steel (HSS) step drill bits from SLADE. Whether you're cutting clean holes in sheet metal, wood, plastic, brass, or PVC, these cone-style step bits deliver fast, accurate, and burr-free results every time. The kit includes three versatile sizes — 3-12mm, 4-12mm, and 4-20mm — making it a true all-in-one solution for DIYers and tradespeople alike.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose This Step Drill Bit Set?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTitanium Coating:\u003c\/strong\u003e Reduces friction, minimises heat build-up, and dramatically extends bit life compared to uncoated HSS bits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium HSS Construction:\u003c\/strong\u003e Heat-treated, highly polished High Speed Steel ensures perfectly round, clean holes on every pass.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3-Sided Anti-Slip Shank:\u003c\/strong\u003e The triangular shank locks firmly into your drill chuck, eliminating dangerous slippage during use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-Flute Design:\u003c\/strong\u003e Drives faster, smoother, and cleaner cuts — each step is clearly laser-etched with its diameter for at-a-glance reference.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Material Compatibility:\u003c\/strong\u003e Ideal for steel, brass, wood, plastic, PVC, and iron plate (up to 3mm thickness). \u003cem\u003eNote: Not suitable for stainless steel, spring steel, or hardened\/quenched materials.\u003c\/em\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Function:\u003c\/strong\u003e Perfect for deburring, chamfering, cutting, or enlarging existing holes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Drilling Tools\u003c\/h3\u003e\n\u003cp\u003eWorks with pistol drills, hand drills, cordless drills, and bench drills. \u003cstrong\u003eTip:\u003c\/strong\u003e Use water injection cooling during continuous drilling to extend bit life significantly.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eBit Size\u003c\/th\u003e\n\u003cth\u003eSteps\u003c\/th\u003e\n\u003cth\u003eStep Sizes\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eRecommended Speed\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e3–12mm\u003c\/td\u003e\n\u003ctd\u003e10 steps\u003c\/td\u003e\n\u003ctd\u003e3, 4, 5, 6, 7, 8, 9, 10, 11, 12mm\u003c\/td\u003e\n\u003ctd\u003e~79mm (3.11\")\u003c\/td\u003e\n\u003ctd\u003e260–400 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e4–12mm\u003c\/td\u003e\n\u003ctd\u003e5 steps\u003c\/td\u003e\n\u003ctd\u003e4, 6, 8, 10, 12mm\u003c\/td\u003e\n\u003ctd\u003e~67mm (2.64\")\u003c\/td\u003e\n\u003ctd\u003e260–400 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e4–20mm\u003c\/td\u003e\n\u003ctd\u003e9 steps\u003c\/td\u003e\n\u003ctd\u003e4, 6, 8, 10, 12, 14, 16, 18, 20mm\u003c\/td\u003e\n\u003ctd\u003e~74mm (2.91\")\u003c\/td\u003e\n\u003ctd\u003e180–240 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eUsage Tips for Best Results\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eApply steady, controlled downward pressure — avoid pressing too hard to prevent edge wear.\u003c\/li\u003e\n  \u003cli\u003eUse the recommended RPM range for each bit size to prevent overheating.\u003c\/li\u003e\n  \u003cli\u003eApply cutting fluid or water cooling during extended or continuous drilling sessions.\u003c\/li\u003e\n  \u003cli\u003eSuitable for workpieces of general hardness only; \u003cstrong\u003edo not use on stainless steel, spring steel, or quenched materials.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Step Drill Bit 3–12mm (10 steps)\u003c\/li\u003e\n  \u003cli\u003e1× Step Drill Bit 4–12mm (5 steps)\u003c\/li\u003e\n  \u003cli\u003e1× Step Drill Bit 4–20mm (9 steps)\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\/10-pack-22awg-glass-tube-fuse-holder-5x20mm-6x30mm-screw-type-10-pack\"\u003e10-Pack 22AWG Glass Tube Fuse Holder 5×20mm \u0026amp; 6×30mm Screw\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-channel-scr-solid-state-relay-switch-module-dc3-24v-40a-optocoupler\"\u003e1-Channel SCR Solid State Relay Module DC3-24V 40A Optocoupler\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor guidance on safe power tool usage and workshop safety best practices, visit the OSHA Power Tools Safety Resource.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Drill_bit\" target=\"_blank\" rel=\"noopener\"\u003eDrill bit\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What materials can I use these HSS titanium step drill bits on?\u003c\/h4\u003e\n\u003cp\u003eA: These step drill bits are designed for general-hardness materials including steel sheet, brass, wood, plastic, PVC plate, and iron plate up to 3mm thick. They are \u003cstrong\u003enot suitable\u003c\/strong\u003e for stainless steel, spring steel, or any hardened\/quenched material, as the cutting edge may wear prematurely on these harder surfaces.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What drill speed (RPM) should I use for each step drill bit?\u003c\/h4\u003e\n\u003cp\u003eA: For the 3–12mm and 4–12mm bits, use a drill speed of 260–400 RPM for optimal performance. For the larger 4–20mm bit, reduce the speed to 180–240 RPM, as the larger diameters create more cutting resistance and heat at higher speeds.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I prevent the step drill bit from overheating during use?\u003c\/h4\u003e\n\u003cp\u003eA: Apply water or cutting fluid as a coolant during continuous or heavy drilling sessions. Avoid pressing down too hard — use steady, controlled pressure. The titanium coating helps reduce heat build-up, but cooling is especially important when drilling multiple holes in succession.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Are these step drill bits compatible with standard drill chucks?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The 3-sided (triangular) anti-slip shank design is compatible with standard pistol drills, hand drills, cordless\/charging drills, and bench drills. The triangular shank also prevents the bit from rotating or slipping in the chuck during use.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What materials can I use these HSS titanium step drill bits on?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These step drill bits are designed for general-hardness materials including steel sheet, brass, wood, plastic, PVC plate, and iron plate up to 3mm thick. They are not suitable for stainless steel, spring steel, or any hardened\/quenched material, as the cutting edge may wear prematurely on these harder surfaces.\"}}, {\"@type\": \"Question\", \"name\": \"What drill speed (RPM) should I use for each step drill bit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"For the 3–12mm and 4–12mm bits, use a drill speed of 260–400 RPM for optimal performance. For the larger 4–20mm bit, reduce the speed to 180–240 RPM, as the larger diameters create more cutting resistance and heat at higher speeds.\"}}, {\"@type\": \"Question\", \"name\": \"How do I prevent the step drill bit from overheating during use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Apply water or cutting fluid as a coolant during continuous or heavy drilling sessions. Avoid pressing down too hard — use steady, controlled pressure. The titanium coating helps reduce heat build-up, but cooling is especially important when drilling multiple holes in succession.\"}}, {\"@type\": \"Question\", \"name\": \"Are these step drill bits compatible with standard drill chucks?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The 3-sided (triangular) anti-slip shank design is compatible with standard pistol drills, hand drills, cordless\/charging drills, and bench drills. The triangular shank also prevents the bit from rotating or slipping in the chuck during use.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"3pcs cloth bag","offer_id":47718386630761,"sku":"14:350850#3pcs cloth bag","price":11.5,"currency_code":"USD","in_stock":true},{"title":"3pcs without bag","offer_id":47718386663529,"sku":"14:350686#3pcs without bag","price":9.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S368e97c94ed440888db0fd23213abb37W.webp?v=1782269071","url":"https:\/\/oasis-select.com\/products\/hss-titanium-step-drill-bit-set-3-12-4-12-4-20mm","provider":"Oasis Select","version":"1.0","type":"link"}