{"title":"Step Tip Drill Bit Sets","description":"\u003ch2\u003eStep Tip Drill Bit Selection — Quick Reference\u003c\/h2\u003e\n\u003cp\u003eStep tip drill bits (step drills \/ Unibit-style \/ stepped drills) = MULTIPLE DIAMETERS in ONE BIT — drill at smaller diameter, push deeper to increase hole size. Sheet metal + panel + multiple-size workflow.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eStep Tip Drill Type\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Step Drill\u003c\/td\u003e\n\u003ctd\u003eSheet metal + general — workshop standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSS Cobalt Step Drill\u003c\/td\u003e\n\u003ctd\u003eStainless sheet + tough material\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTitanium-Coated\u003c\/td\u003e\n\u003ctd\u003eExtended life + production\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon Range (4-30mm in steps)\u003c\/td\u003e\n\u003ctd\u003eWorkshop common conduit + cable sizes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\/4\" Hex Shank\u003c\/td\u003e\n\u003ctd\u003eQuick-change driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard 3-Flat Shank\u003c\/td\u003e\n\u003ctd\u003eDrill chuck — anti-slip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eCritical:\u003c\/strong\u003e Step drills for SHEET MATERIAL ONLY — not thick steel. Use CUTTING FLUID. Stops at required diameter — don't push past target size. Brand: \u003ca href=\"\/en-nz\/collections\/alpha\"\u003eAlpha\u003c\/a\u003e, \u003ca href=\"\/en-nz\/collections\/sutton-tools\"\u003eSutton Tools\u003c\/a\u003e. Companion: \u003ca href=\"\/en-nz\/collections\/step-drill-bits\"\u003estep drill bits\u003c\/a\u003e, \u003ca href=\"\/en-nz\/collections\/drilling\"\u003edrilling\u003c\/a\u003e, \u003ca href=\"\/en-nz\/collections\/panel-drill-bit-sets\"\u003epanel drill bits\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eStep Tip Drill Bit Sets for Australian Sheet Metal and Panel Work\u003c\/h2\u003e\n\u003cp\u003eStep tip drill bits — also called step drills, Unibit-style drills, or stepped drills — are single-bit tools that drill multiple hole sizes by stepping through progressively larger diameters. Each step has a flat at the cutting edge that produces a clean entry hole with minimal burr, making them the right tool for thin sheet metal, panel work, and electrical enclosure drilling where standard twist drills tear and grab. AIMS Industrial supplies step tip drill bit sets in the sizes Australian trade users actually need.\u003c\/p\u003e\n\n\u003ch3\u003eHow step tip drills work\u003c\/h3\u003e\n\u003cp\u003eThe bit has a series of progressively larger steps along its length — typically 5mm, 6mm, 8mm, 10mm, 12mm, and so on up to 32mm or 40mm. Drill into the workpiece until the desired step diameter is reached, then stop. The result is a clean hole at exactly that diameter, with minimal burr at entry and exit. The same bit drills multiple hole sizes without tool changes, making it dramatically faster than swapping individual twist drills for varied-size sheet metal work.\u003c\/p\u003e\n\n\u003ch3\u003eWhere step drills earn their place\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical enclosure drilling\u003c\/strong\u003e — making clean holes for cable glands, switches, and panel hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive panel work\u003c\/strong\u003e — drilling clean holes through body panels, dashboards, and trim\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHVAC ducting\u003c\/strong\u003e — making holes for fastener access and instrument mounts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheet metal fabrication\u003c\/strong\u003e — drilling varied-size holes without bit changes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService van modifications\u003c\/strong\u003e — installing accessories and storage with multiple hole sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSizing — common step ranges\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-12mm step drills\u003c\/strong\u003e — small-hole work in thin sheet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-22mm step drills\u003c\/strong\u003e — the everyday workshop range covering most sheet metal work\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6-32mm step drills\u003c\/strong\u003e — larger-hole work and conduit penetrations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9-39mm step drills\u003c\/strong\u003e — heavy-duty step drills for larger panel work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eCommon step intervals are 1mm or 2mm — finer step intervals give more size choices but cost more. For most workshops, 2mm steps cover the work; production users may benefit from finer 1mm steps.\u003c\/p\u003e\n\n\u003ch3\u003eHSS versus titanium-coated versus carbide\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSS step drills\u003c\/strong\u003e — the everyday choice for mild steel sheet, aluminium, and plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTitanium-nitride (TiN) coated HSS\u003c\/strong\u003e — extended life in harder sheet materials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCobalt HSS (HSS-E)\u003c\/strong\u003e — for stainless steel and harder sheet metals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbide-tipped step drills\u003c\/strong\u003e — for the toughest sheet materials and longest service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDrilling practice\u003c\/h3\u003e\n\u003cp\u003eRun step drills at moderate RPM (typically 600-1500 RPM depending on diameter and material). Apply firm steady pressure — the step pattern naturally limits feed depth, so excessive force just bogs the drill down. Use cutting fluid (Tap Magic or similar) for steel and stainless work; aluminium and plastic can run dry. Withdraw and clear chips between steps for deeper holes. For very thin sheet, support the work on a backing material to prevent breakthrough damage.\u003c\/p\u003e\n\n\u003ch3\u003eBrands stocked at AIMS\u003c\/h3\u003e\n\u003cp\u003eSutton Tools, Bordo, and Champion cover the step drill range across HSS, coated, and cobalt grades. Sets are typically supplied in hard cases with 2-5 step drills covering the standard size ranges.\u003c\/p\u003e\n\n\u003ch3\u003eCompanion ranges at AIMS\u003c\/h3\u003e\n\u003cp\u003eStep tip drill bits sit alongside our broader drill bit range — see \u003ca href=\"\/en-nz\/collections\/multi-purpose-drill-bits\"\u003emulti-purpose drill bits\u003c\/a\u003e, \u003ca href=\"\/en-nz\/collections\/panel-drill-bit-sets\"\u003epanel drill bit sets\u003c\/a\u003e, \u003ca href=\"\/en-nz\/collections\/reduced-shank-drill-bits\"\u003ereduced shank drill bits\u003c\/a\u003e, and \u003ca href=\"\/en-nz\/collections\/holemaking\"\u003eholemaking tools\u003c\/a\u003e for the related products.\u003c\/p\u003e\n\n\u003cp\u003eNeed help speccing step drills for sheet metal, electrical, or panel work? \u003ca href=\"\/en-nz\/pages\/contact-us\"\u003econtact our team\u003c\/a\u003e — we'll match step range and material grade to your work.\u003c\/p\u003e","products":[{"product_id":"alpha-sm16st-onsite-plus-impact-step-tip-drill-set-16piece","title":"Alpha SM16ST ONSITE Plus Impact Step Tip Drill Set, 16piece","description":"\u003cdiv style=\"max-width:680px;width:100%;padding:12px 0;font-family:Arial,sans-serif;\"\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;justify-content:space-between;border-top:1px solid #e0e0e0;border-bottom:1px solid #e0e0e0;padding:16px 0;margin-bottom:24px;\"\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e◆\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eDrills the pilot hole and cuts the thread in one operation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e●\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eHSS or TCT cutting with optional TiN coating for long working life\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e▲\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eStandard 1\/4 inch hex shank fits common drill chucks and quick-change holders\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:14px;line-height:1.6;color:#444;margin:0;\"\u003eAlpha ONSITE Plus Impact Step Tip Drill Set drill the pilot hole and cut the thread in one operation, saving the tool change on every fastener. Built for fast fastening to steel, aluminium and structural section in production line assembly, on-site fastening and maintenance and repair work. Stocked at AIMS Industrial as part of the Alpha drill and tap range.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Alpha","offers":[{"title":"Default Title","offer_id":49301826208021,"sku":"A0181638","price":297.63,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/files\/alpha-sm16st-onsite-plus-impact-step-tip-drill-set-16piece-2862692.jpg?v=1781503277"},{"product_id":"alpha-sm23st-onsite-plus-impact-step-tip-drill-set-23piece","title":"Alpha SM23ST ONSITE Plus Impact Step Tip Drill Set, 23piece","description":"\u003cdiv style=\"max-width:680px;width:100%;padding:12px 0;font-family:Arial,sans-serif;\"\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;justify-content:space-between;border-top:1px solid #e0e0e0;border-bottom:1px solid #e0e0e0;padding:16px 0;margin-bottom:24px;\"\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e◆\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eDrills the pilot hole and cuts the thread in one operation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e●\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eHSS or TCT cutting with optional TiN coating for long working life\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e▲\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eStandard 1\/4 inch hex shank fits common drill chucks and quick-change holders\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:14px;line-height:1.6;color:#444;margin:0;\"\u003eAlpha ONSITE Plus Impact Step Tip Drill Set is the time-saver tradies fit when they need to drill the pilot, tap the thread and deburr in one operation. Engineered for HSS or TCT cutting through steel, aluminium and stainless. Part of the Alpha range stocked at AIMS Industrial for trade and production customers.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Alpha","offers":[{"title":"Default Title","offer_id":49301826470165,"sku":"A0181639","price":370.93,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/files\/alpha-sm23st-onsite-plus-impact-step-tip-drill-set-23piece-7346033.jpg?v=1781503277"},{"product_id":"bordo-2012-s1-cobalt-step-tip-drill-and-accessory-set","title":"Bordo 2012-S1 Cobalt Step Tip Drill And Accessory Set","description":"\u003cdiv style=\"max-width:680px;width:100%;padding:12px 0;font-family:Arial,sans-serif\"\u003e\n\u003cdiv style=\"display:grid;grid-template-columns:1fr 1fr 1fr;gap:0;margin-bottom:24px\"\u003e\n\u003cdiv style=\"padding:12px 16px;border-right:1px solid #e0e0e0;\"\u003e\n\u003cdiv style=\"font-size:18px;margin-bottom:6px\"\u003e◆\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:600;color:#333;line-height:1.4\"\u003eSuper-fast drilling in ferrous \u0026amp; non-ferrous metals and all timbers.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding:12px 16px;border-right:1px solid #e0e0e0;\"\u003e\n\u003cdiv style=\"font-size:18px;margin-bottom:6px\"\u003e●\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:600;color:#333;line-height:1.4\"\u003eStep Tip negates the need for a pilot drill in metals and provides extreme drilling speeds in ferrous and non-ferrous metals \u0026amp; all timbers.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding:12px 16px;\"\u003e\n\u003cdiv style=\"font-size:18px;margin-bottom:6px\"\u003e▲\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:600;color:#333;line-height:1.4\"\u003e1\/4 hex shank is ideal for use with impact drivers, quick change adaptors and bit holders.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:14px;color:#444;line-height:1.7;margin:0\"\u003eMetric Cobalt Tough HSS-Co5 Step Tip Extreme Performance Drill. Super-fast drilling in ferrous \u0026amp; non-ferrous metals and all timbers. Designed for demanding step drill bit applications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Bordo","offers":[{"title":"Default Title","offer_id":49323949457685,"sku":"A0204904","price":289.59,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/files\/bordo-2012-s1-cobalt-step-tip-drill-and-accessory-set-4629617.jpg?v=1779091146"}],"url":"https:\/\/aimsindustrial.com.au\/en-nz\/collections\/step-tip-drill-bit-sets.oembed","provider":"AIMS Industrial Supplies","version":"1.0","type":"link"}