{"product_id":"8900a-multi-step-drill","title":"8900A Multi-Step Drill – Pack of 4","description":"\u003ch2\u003eDRILLCO 8900A Multi Step Drill — Precision Hole Cutting and Enlarging in Sheet Material\u003c\/h2\u003e\n\u003cp\u003eThe DRILLCO 8900A Multi Step Drill is a high speed steel step drill bit engineered for cutting or enlarging holes in sheet material. Designed for contractors and trades professionals who require clean, accurate holes across a range of diameters in a single tool, the 8900 series eliminates the need to swap multiple bits during a job. Available in six configurations spanning diameters from 1\/8\" up to 1-3\/8\", these step drills deliver versatility across common sheet metal and panel applications. Speed, feed, and lubrication are all critical to performance and tool life with this cutting tool.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eDRILLCO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e890A001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e045997394794\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eChina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eMulti Step Drill Bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003e8900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHigh Speed Steel (HSS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eCutting or enlarging holes in sheet material\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTechnical Tips\u003c\/td\u003e\n\u003ctd\u003eSpeed, feed, and lube are all critical to cutting tool performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAvailable Sizes\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eItem #\u003c\/th\u003e\n\u003cth\u003eStep Number\u003c\/th\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e890A001\u003c\/td\u003e\n\u003ctd\u003e#1\u003c\/td\u003e\n\u003ctd\u003e1\/8\" – 1\/2\"\u003c\/td\u003e\n\u003ctd\u003e#1 1\/8-1\/2 Multi Step Drill - 8900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e890A002\u003c\/td\u003e\n\u003ctd\u003e#2\u003c\/td\u003e\n\u003ctd\u003e3\/16\" – 1\/2\"\u003c\/td\u003e\n\u003ctd\u003e#2 3\/16-1\/2 Multi Step Drill - 8900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e890A003\u003c\/td\u003e\n\u003ctd\u003e#3\u003c\/td\u003e\n\u003ctd\u003e1\/4\" – 3\/4\"\u003c\/td\u003e\n\u003ctd\u003e#3 1\/4-3\/4 Multi Step Drill - 8900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e890A004\u003c\/td\u003e\n\u003ctd\u003e#4\u003c\/td\u003e\n\u003ctd\u003e3\/16\" – 7\/8\"\u003c\/td\u003e\n\u003ctd\u003e#4 3\/16-7\/8 Multi Step Drill - 8900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e890A005\u003c\/td\u003e\n\u003ctd\u003e#5\u003c\/td\u003e\n\u003ctd\u003e1\/4\" – 1-3\/8\"\u003c\/td\u003e\n\u003ctd\u003e#5 1\/4-1-3\/8 Multi Step Drill - 8900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e890A009\u003c\/td\u003e\n\u003ctd\u003e#9\u003c\/td\u003e\n\u003ctd\u003e7\/8\" – 1-1\/8\"\u003c\/td\u003e\n\u003ctd\u003e#9 7\/8-1-1\/8 Multi Step Drill\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe 8900 series step drill consolidates multiple hole sizes into a single tool, reducing bit changes and keeping work moving on the job site. With six distinct size configurations available, contractors can select the exact range that matches their sheet material requirements rather than carrying a full set of individual twist drills.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003eHigh Speed Steel Construction\u003c\/h4\u003e\n\u003cp\u003eHSS is the most commonly used tool material for general purpose drilling and is suitable for a broad range of materials including low to medium strength steels, aluminum, and other non-ferrous materials. This makes the 8900 series a reliable choice for everyday sheet material work without requiring specialty tooling.\u003c\/p\u003e\n\u003ch4\u003eMulti-Step Design\u003c\/h4\u003e\n\u003cp\u003eEach bit covers a range of hole diameters in a single tool, allowing contractors to cut or enlarge holes to multiple sizes without swapping bits. This reduces downtime and simplifies tool inventory on the job.\u003c\/p\u003e\n\u003ch4\u003eSix Size Configurations\u003c\/h4\u003e\n\u003cp\u003eWith options ranging from 1\/8\" up to 1-3\/8\", the 8900 series covers a wide span of common hole sizes encountered in sheet material applications. Contractors can select the configuration that best matches the diameter range required for their specific task.\u003c\/p\u003e\n\u003ch4\u003eSpeed, Feed, and Lubrication Optimization\u003c\/h4\u003e\n\u003cp\u003eProper speed, feed rate, and lubrication are identified as critical factors in cutting tool performance for this series. Applying the correct parameters extends tool life and produces cleaner holes, reducing rework and material waste.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003eCutting Holes in Sheet Material\u003c\/h4\u003e\n\u003cp\u003eThe 8900 series is purpose-built for cutting clean holes in sheet material, making it well suited for electrical, HVAC, and general fabrication tasks where precise hole sizing in panels or sheet metal is required.\u003c\/p\u003e\n\u003ch4\u003eEnlarging Existing Holes\u003c\/h4\u003e\n\u003cp\u003eThe step design allows contractors to enlarge pre-existing holes to a larger diameter in a controlled, incremental manner without the need for a separate reamer or larger twist drill.\u003c\/p\u003e\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/bbz48awmftjmmy4umjo7_2c2bdc2e-5052-4a44-b316-eb17537a7bff.pdf?v=1793375303\" target=\"_blank\" rel=\"noopener\"\u003eSafety Data Sheet (SDS) — DRILLCO High Speed Steel Cutting Tools\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/cinakvujelpexceens0b_7fd020d2-696a-4a4a-ae65-74d9719afbc5.pdf?v=1793375304\" target=\"_blank\" rel=\"noopener\"\u003eDRILLCO Product Linecard\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\u003ch4\u003eHazard Information\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDuring normal operation, high speed steel products do not present inhalation, ingestion, or other chemical hazards.\u003c\/li\u003e\n\u003cli\u003eGrinding, cutting, machining, burning, or welding may release dusts, fumes, or vapors that present health hazards if exposure limits are exceeded.\u003c\/li\u003e\n\u003cli\u003eExcessive inhalation of metallic fumes and dusts may cause irritation of eyes, nose, and throat; symptoms may include metallic taste, dryness and irritation of the throat, chills, and fever persisting 12 to 48 hours.\u003c\/li\u003e\n\u003cli\u003eChromium is listed as a carcinogen by NTP and OSHA; various forms of dermatitis, inflammation and\/or ulceration of the upper respiratory tract, and possibly cancer of nasal passages and lungs are associated with chromium exposure.\u003c\/li\u003e\n\u003cli\u003eTungsten: some evidence of pulmonary involvement such as cough.\u003c\/li\u003e\n\u003cli\u003eVanadium: eye and respiratory tract irritant.\u003c\/li\u003e\n\u003cli\u003eCobalt dust is identified as the most probable cause of respiratory diseases including occupational asthma and interstitial fibrosis.\u003c\/li\u003e\n\u003cli\u003eSkin contact with dust can cause irritation or allergic skin rash due to cobalt sensitization.\u003c\/li\u003e\n\u003cli\u003eEye contact may cause irritation.\u003c\/li\u003e\n\u003cli\u003eFine metal particles produced when ground or sawed can burn; high concentrations in air may present an explosion hazard.\u003c\/li\u003e\n\u003cli\u003eNFPA Hazard Rating: Health 1; Flammability 0; Reactivity 0.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePersonal Protective Equipment\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWear safety glasses or goggles with side shields; do not wear contact lenses when handling.\u003c\/li\u003e\n\u003cli\u003eCloth or leather gloves are recommended when contact with dust or mist is likely.\u003c\/li\u003e\n\u003cli\u003eUse an appropriate NIOSH-approved respirator if airborne dust concentration exceeds the applicable PEL or TLV.\u003c\/li\u003e\n\u003cli\u003eHearing protection may be required.\u003c\/li\u003e\n\u003cli\u003eAlways use machine guards and wear protective clothing to prevent injury in the event of tool breakage.\u003c\/li\u003e\n\u003cli\u003eEmployer should provide an eye wash station within the immediate work area for emergency use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUse only with local exhaust ventilation adequate to limit personal exposure to airborne dust below PEL or TLV levels.\u003c\/li\u003e\n\u003cli\u003eWash hands thoroughly after handling and before eating or smoking; wash exposed skin at end of work shift.\u003c\/li\u003e\n\u003cli\u003eDo not shake clothing, rags, or other items to remove dust — remove dust by washing or vacuuming with appropriate filters.\u003c\/li\u003e\n\u003cli\u003eSoiled clothing should be laundered separately.\u003c\/li\u003e\n\u003cli\u003eStore in a dry place in a manner that prevents accidental environmental contamination from traces of industrial lubricants or wetting oils.\u003c\/li\u003e\n\u003cli\u003eClean up spills using methods that avoid dust generation such as vacuum with appropriate filters, wet dust mop, or wet clean up.\u003c\/li\u003e\n\u003cli\u003eIncompatible with strong acids and strong oxidizers.\u003c\/li\u003e\n\u003cli\u003eFor powder fires, smother with dry sand, dry dolomite, ABC type fire extinguisher, or flood with water.\u003c\/li\u003e\n\u003cli\u003eDispose of waste material in compliance with federal, state\/provincial, and local environmental regulations; send to an appropriate reclamation facility if available.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the primary application for the DRILLCO 8900 Multi Step Drill?\u003c\/strong\u003e\u003cbr\u003eA: The 8900 series is designed for cutting or enlarging holes in sheet material.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which size configuration should I choose for holes between 1\/4\" and 3\/4\"?\u003c\/strong\u003e\u003cbr\u003eA: The #3 configuration (SKU 890A003) covers the 1\/4\" to 3\/4\" diameter range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the largest hole diameter available across the 8900 series?\u003c\/strong\u003e\u003cbr\u003eA: The #5 configuration (SKU 890A005) reaches up to 1-3\/8\" in diameter, the largest in the series.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What material are these step drill bits made from?\u003c\/strong\u003e\u003cbr\u003eA: The 8900 series is constructed from High Speed Steel (HSS), the most commonly used tool material for general purpose drilling, suitable for low to medium strength steels, aluminum, and other non-ferrous materials.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are there any critical operating factors I should be aware of to maximize tool life?\u003c\/strong\u003e\u003cbr\u003eA: Yes — speed, feed, and lubrication are all identified as critical to cutting tool performance. Using the correct parameters for your material will extend tool life and improve hole quality.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many SKUs are available in the 8900 Multi Step Drill series?\u003c\/strong\u003e\u003cbr\u003eA: Six configurations are available: 890A001 (#1, 1\/8\"–1\/2\"), 890A002 (#2, 3\/16\"–1\/2\"), 890A003 (#3, 1\/4\"–3\/4\"), 890A004 (#4, 3\/16\"–7\/8\"), 890A005 (#5, 1\/4\"–1-3\/8\"), and 890A009 (#9, 7\/8\"–1-1\/8\").\u003c\/p\u003e","brand":"Drillco","offers":[{"title":"1\/8\" – 1\/2\" (13 Steps, 1\/4\" Shank)","offer_id":67905984037038,"sku":"890A001","price":153.12,"currency_code":"USD","in_stock":true},{"title":"3\/16\" – 1\/2\" (6 Steps, 1\/4\" Shank)","offer_id":67905984069806,"sku":"890A002","price":153.6,"currency_code":"USD","in_stock":true},{"title":"1\/4\" – 3\/4\" (9 Steps, 3\/8\" Shank)","offer_id":67905984102574,"sku":"890A003","price":181.32,"currency_code":"USD","in_stock":true},{"title":"3\/16\" – 7\/8\" (12 Steps, 3\/8\" Shank)","offer_id":67905984135342,"sku":"890A004","price":196.52,"currency_code":"USD","in_stock":true},{"title":"1\/4\" – 1-3\/8\" (10 Steps, 1\/2\" Shank)","offer_id":67905984168110,"sku":"890A005","price":294.48,"currency_code":"USD","in_stock":true},{"title":"7\/8\" – 1-1\/8\" (2 Steps, 1\/4\" Shank)","offer_id":67905984200878,"sku":"890A009","price":205.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/n9eon1jp3lflkfbhcjfd.jpg?v=1793375307","url":"https:\/\/www.diamondtoolstore.com\/products\/8900a-multi-step-drill","provider":"Diamond Tool Store","version":"1.0","type":"link"}