{"product_id":"milwaukee-48899399-step-drill-bit-set-3-piece","title":"Milwaukee 48899399 Step Drill Bit Set - 3 Piece","description":"\u003ch4\u003e\u003cstrong\u003eMilwaukee 48899399 Step Drill Bit Set - 3 Piece\u003c\/strong\u003e\u003c\/h4\u003e\n\n\u003cp\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Milwaukee 48899399 Step Drill Bit Set is a professional 3-piece drilling kit designed for creating precise, clean holes in sheet metal, stainless steel, copper, brass, aluminium and plastics. Featuring three versatile step drill bits covering sizes from 4mm to 35mm, this set provides an efficient solution for electricians, plumbers, HVAC installers, metal fabricators, automotive technicians and maintenance professionals.\u003c\/p\u003e\n\n\u003cp\u003eEngineered with Milwaukee RAPID STRIKE TIP technology, these step drill bits provide accurate drilling starts without wandering across the workpiece. The innovative tip design eliminates the need for pre-drilling, helping reduce preparation time and improve productivity. Each bit combines spotting, drilling and deburring into a single operation, allowing users to produce clean, accurately sized holes with minimal additional finishing.\u003c\/p\u003e\n\n\u003cp\u003eThe optimised two-flute cutting geometry features precision-ground, sharpened edges that deliver up to twice the cutting speed and smoother drilling performance. Specially designed cutting steps help minimise snagging, reduce material deformation and improve control when used with suitable high-speed cordless drills.\u003c\/p\u003e\n\n\u003cp\u003eManufactured from specially engineered steel with a black oxide coating, the Milwaukee step drill bits are designed to provide up to four times longer service life. Their robust construction offers excellent durability for demanding drilling applications, while the thick core helps resist breakage compared with conventional twist drill bits.\u003c\/p\u003e\n\n\u003cp\u003eEach step drill bit features laser-engraved size markings for clear, long-lasting diameter identification and a three-flat secure grip shank to help prevent slipping inside the drill chuck. Suitable for drilling materials up to 4mm thick, the Milwaukee 48899399 set is ideal for creating new holes, enlarging existing openings and carrying out professional installation and fabrication work.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-Piece Step Drill Bit Set:\u003c\/strong\u003e Includes three versatile step drill bits covering drilling diameters from 4mm to 35mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Hole Sizes:\u003c\/strong\u003e Allows users to drill different diameters with a single bit, reducing the need for frequent tool changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRAPID STRIKE TIP Technology:\u003c\/strong\u003e Provides accurate drilling starts without wandering and eliminates the need for pilot holes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpot, Drill and Deburr:\u003c\/strong\u003e Combines three drilling operations into one convenient process for clean, accurately finished holes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimised Two-Flute Geometry:\u003c\/strong\u003e Precision-ground cutting edges provide up to twice the cutting speed and smoother performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-Snag Step Design:\u003c\/strong\u003e Helps reduce jamming and material deformation during drilling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Oxide Coating:\u003c\/strong\u003e Specially engineered steel construction with protective coating delivers up to four times longer service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Core Construction:\u003c\/strong\u003e Designed to resist breakage and provide durability during demanding drilling tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Deburring:\u003c\/strong\u003e Relief-ground steps help produce clean holes with minimal burr formation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-Flat Secure Grip Shank:\u003c\/strong\u003e Helps prevent slipping in the drill chuck and supports effective torque transmission.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaser-Engraved Size Markings:\u003c\/strong\u003e Provides clear and durable diameter identification for accurate hole sizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for Cordless Drills:\u003c\/strong\u003e Optimised for use with compatible high-speed cordless drilling equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Material Compatibility:\u003c\/strong\u003e Suitable for ferrous and non-ferrous sheet metals, stainless steel, copper, brass, aluminium and plastics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Material Thickness:\u003c\/strong\u003e Designed for drilling suitable materials up to 4mm thick.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSet Contents\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e1 x Milwaukee Step Drill Bit 4-12mm\u003c\/li\u003e\n\u003cli\u003e1 x Milwaukee Step Drill Bit 4-20mm\u003c\/li\u003e\n\u003cli\u003e1 x Milwaukee Step Drill Bit 6-35mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eBrand: Milwaukee\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: 48899399\u003c\/li\u003e\n\u003cli\u003eProduct Type: Step Drill Bit Set\u003c\/li\u003e\n\u003cli\u003eSet Size: 3 Piece\u003c\/li\u003e\n\u003cli\u003eIncluded Drill Bit Sizes: 4-12mm, 4-20mm and 6-35mm\u003c\/li\u003e\n\u003cli\u003eOverall Drilling Diameter Range: 4-35mm\u003c\/li\u003e\n\u003cli\u003eDrill Bit Material: Specially Engineered Steel\u003c\/li\u003e\n\u003cli\u003eCoating: Black Oxide\u003c\/li\u003e\n\u003cli\u003eTip Technology: RAPID STRIKE TIP\u003c\/li\u003e\n\u003cli\u003eCutting Geometry: Optimised Two-Flute Design\u003c\/li\u003e\n\u003cli\u003eShank Type: Three-Flat Secure Grip\u003c\/li\u003e\n\u003cli\u003eSize Markings: Laser Engraved\u003c\/li\u003e\n\u003cli\u003eMaximum Material Thickness: 4mm\u003c\/li\u003e\n\u003cli\u003eSuitable Materials: Steel, Stainless Steel, Copper, Brass, Aluminium, Ferrous and Non-Ferrous Sheet Metals, and Plastics\u003c\/li\u003e\n\u003cli\u003ePack Quantity: 3 Pieces\u003c\/li\u003e\n\u003cli\u003eEAN Code: 045242344420\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuitable Applications\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eDrilling accurately sized holes in steel and stainless steel sheets\u003c\/li\u003e\n\u003cli\u003eCreating cable gland openings in electrical panels and cabinets\u003c\/li\u003e\n\u003cli\u003eEnlarging existing holes in sheet metal and suitable plastic materials\u003c\/li\u003e\n\u003cli\u003eElectrical installation and control panel fabrication\u003c\/li\u003e\n\u003cli\u003ePlumbing and HVAC installations requiring pipework access holes\u003c\/li\u003e\n\u003cli\u003eMetal fabrication and workshop drilling applications\u003c\/li\u003e\n\u003cli\u003eAutomotive installations involving wiring, antennas and accessories\u003c\/li\u003e\n\u003cli\u003eDrilling copper, brass and aluminium components\u003c\/li\u003e\n\u003cli\u003eMaintenance and repair work requiring multiple hole diameters\u003c\/li\u003e\n\u003cli\u003eProducing clean holes in plastics with reduced risk of cracking\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eRecommended Usage\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eFor optimum drilling performance and extended tool life, use a suitable cutting coolant or lubricant when drilling metals. Select the appropriate drilling speed for the material and diameter, and ensure the workpiece is securely supported. The maximum recommended material thickness is 4mm.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Choose the Milwaukee 48899399 Step Drill Bit Set?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Milwaukee 48899399 combines three versatile step drill bits with RAPID STRIKE TIP technology, durable black oxide coating and optimised cutting geometry. Its ability to drill multiple hole sizes, enlarge existing openings and deburr material in one operation makes it a practical choice for professionals looking to improve drilling efficiency while reducing the number of individual drill bits required.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eData Sheet:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/api.milwaukeetool.eu\/fact-tag-generator\/public-generation\/generate?agilityid=232099\u0026amp;facttagsize=1\u0026amp;horizontal=true\u0026amp;cultureCode=en-GB\" title=\"Milwaukee 48899399 Step Drill Bit Set 3 Piece Data Sheet\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eClick Here for Data Sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Milwaukee","offers":[{"title":"Default Title","offer_id":58940321005949,"sku":"48899399","price":153.77,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0582\/1693\/9618\/files\/48899399--Hero_1.jpg?v=1792471317","url":"https:\/\/b2belectrical.com\/products\/milwaukee-48899399-step-drill-bit-set-3-piece","provider":"B2Belectrical.com","version":"1.0","type":"link"}