{"product_id":"ezarc-4-20mm-m35-cobalt-hss-step-drill-bit-altin-coated-triple-spiral-flute-quarter-inch-hex-shank","title":"EZARC 4–20mm Step Drill Bit | M35 Cobalt HSS \u0026 AlTiN Coating | 9 Sizes | Triple Spiral Flute \u0026 C-Profile Edge | 1\/4-Inch Hex Shank","description":"\u003ch2\u003eEZARC: Nine Hole Sizes, One Step Drill Bit\u003c\/h2\u003e\n\u003cp\u003eMove from a small starter hole to the diameter your project needs without constantly swapping bits. The EZARC 4–20mm step drill combines nine clearly marked sizes with M35 cobalt high-speed steel and an AlTiN coating. Its triple spiral flutes and C-profile cutting edges are designed for smooth cutting, making it a practical addition to your kit for thin sheet metal, plastic and other suitable materials.\u003c\/p\u003e\n\u003ch3\u003eWhy You'll Love It\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFewer bit changes between sizes.\u003c\/strong\u003e Searching through separate drill bits slows a job down. Nine steps from 4 to 20mm let you enlarge a hole progressively using one EZARC bit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for demanding drilling tasks.\u003c\/strong\u003e Heat and wear can shorten a cutting tool's working life. M35 cobalt HSS and the AlTiN coating provide a wear-resistant combination for suitable metal-drilling applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA cutting design focused on control.\u003c\/strong\u003e Rough cutting and wandering can spoil a neat finish. Triple spiral flutes, a 118° split-point tip and C-profile edges are designed to support positioning and smoother cutting, while the 1\/4-inch hex shank fits compatible drill holders.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e EZARC\u003cbr\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Step drill bit\u003cbr\u003e\u003cstrong\u003eCutting sizes:\u003c\/strong\u003e 4, 6, 8, 10, 12, 14, 16, 18 and 20 mm\u003cbr\u003e\u003cstrong\u003eNumber of steps:\u003c\/strong\u003e Nine\u003cbr\u003e\u003cstrong\u003eStep height:\u003c\/strong\u003e 5 mm\u003cbr\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e M35 cobalt high-speed steel\u003cbr\u003e\u003cstrong\u003eCoating:\u003c\/strong\u003e Aluminium titanium nitride (AlTiN)\u003cbr\u003e\u003cstrong\u003eFlutes:\u003c\/strong\u003e Three spiral flutes\u003cbr\u003e\u003cstrong\u003eCutting edge:\u003c\/strong\u003e C-profile\u003cbr\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e 118° split point\u003cbr\u003e\u003cstrong\u003eShank:\u003c\/strong\u003e 1\/4-inch hexagonal\u003cbr\u003e\u003cstrong\u003eSuitable materials:\u003c\/strong\u003e Thin metal sheet, stainless steel, aluminium, plastic, wood and fibreglass, subject to material-specific drilling guidance\u003cbr\u003e\u003cstrong\u003eMaximum stated metal sheet thickness:\u003c\/strong\u003e 3 mm\u003cbr\u003e\u003cstrong\u003eMaximum stated stainless steel thickness:\u003c\/strong\u003e 1 mm\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eIn The Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × EZARC 4–20mm step drill bit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/4260\/6640\/files\/S66f25997f82e47a0ae78015013706d50p.webp?v=1775482476\" alt=\"EZARC black AlTiN-coated 4–20mm spiral step drill bit with hex shank\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/4260\/6640\/files\/S09cf0e8e7d74491c9e5554118a085630w.webp?v=1775482476\" alt=\"EZARC step drill nine sizes from 4 to 20mm and quarter-inch hex shank\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/4260\/6640\/files\/S0da50f2ea15d4289a3baad5552d5d4add-_3.webp?v=1776166519\" alt=\"EZARC C-profile cutting edge comparison graphic\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/4260\/6640\/files\/S9ce04af306bd4527ae9d9f710798b10a9-_4.webp?v=1776166522\" alt=\"EZARC three spiral flute step drill with 118 degree split-point tip\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/4260\/6640\/files\/Sc62365caa46849128cc0a7464b2e1each.webp?v=1776166522\" alt=\"EZARC cobalt high-speed steel step drill AlTiN coating feature graphic\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/4260\/6640\/files\/Scd6358e1226046139afd8768bf5a2380G.webp?v=1776166522\" alt=\"EZARC step drill suitable material graphic showing stainless steel sheet wood plastic and fibreglass\"\u003e\u003c\/p\u003e\n\u003ch3\u003eUse, Care \u0026amp; Safety\u003c\/h3\u003e\n\u003cp\u003eWear eye protection and secure the workpiece before drilling. Fit the bit securely in a compatible drill and follow the tool and bit manufacturer's instructions. Use a suitable low drilling speed, controlled pressure and appropriate cutting lubricant for metal. Do not exceed 3mm metal sheet thickness or 1mm stainless steel thickness. Stop at the required step to avoid enlarging the hole further. Allow the bit to cool before handling and disconnect the tool before changing bits. Use appropriate dust control when working with wood or fibreglass.\u003c\/p\u003e","brand":"EZARC","offers":[{"title":"Step Drill Bit \/ Hexagonal","offer_id":51290944504112,"sku":"1005008152965832_350850_202813809","price":27.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/4260\/6640\/files\/S66f25997f82e47a0ae78015013706d50p.webp?v=1775482476","url":"https:\/\/www.adamsallsorts.co.uk\/products\/ezarc-4-20mm-m35-cobalt-hss-step-drill-bit-altin-coated-triple-spiral-flute-quarter-inch-hex-shank","provider":"Adams Allsorts","version":"1.0","type":"link"}