{"product_id":"nitro-heavy-duty-construction-reamers-3-pc-set","title":"NITRO Heavy-Duty Construction Reamers 3 PC Set","description":"\u003ch2\u003eNITRO Heavy-Duty Construction Reamers 3 PC Set — Premium HSS Performance for Metal Reaming\u003c\/h2\u003e\n\u003cp\u003eThe DRILLCO NITRO Heavy-Duty Construction Reamers 3 PC Set (Item #428N3S) is a professional-grade reamer set engineered for contractors and trades professionals working with metal. Manufactured from premium grade high speed steel (HSS) in the United States, these reamers are designed for enlarging holes in metal, aligning misaligned holes, and reaming operations using power tools equipped with standard 3-jaw chucks. The set includes three reamers covering sizes from 1\/2\" to 3\/4\", making it a versatile solution for a range of common field and fabrication tasks.\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\u003eItem #\u003c\/td\u003e\n\u003ctd\u003e428N3S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e662980386002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Pieces\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSet Sizes\u003c\/td\u003e\n\u003ctd\u003e1\/2\" to 3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePremium grade HSS (High Speed Steel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Type\u003c\/td\u003e\n\u003ctd\u003e3-flats reduced shank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface Treatment\u003c\/td\u003e\n\u003ctd\u003eBlack and gold surface treatment for maximum lubricity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eEnlarging holes in metal, aligning misaligned holes in metal, reaming with power tools that use standard 3-jaw chucks\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\u003eDescription\u003c\/th\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e428N3S\u003c\/td\u003e\n\u003ctd\u003eReamer set 3 pc\u003c\/td\u003e\n\u003ctd\u003e1\/2\" to 3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eUnlike standard black oxide reamers suited only for low to medium tensile strength materials, the NITRO set's black and gold surface treatment provides better resistance to corrosion and breakage while increasing lubricity, making it suitable for use on most materials. The high-spiral flute design and safety collar on the shank further differentiate these reamers from basic construction reamer alternatives by delivering faster chip evacuation and built-in over-penetration protection.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003ePremium Grade HSS Construction\u003c\/h4\u003e\n\u003cp\u003eBuilt from premium grade high speed steel, these reamers are engineered for extended tool life in demanding metal-working environments. HSS provides the hardness and toughness needed to maintain cutting performance through repeated use on metal substrates.\u003c\/p\u003e\n\u003ch4\u003eBlack and Gold Surface Treatment\u003c\/h4\u003e\n\u003cp\u003eThe black and gold surface treatment adds a hard, protective layer to the reamer body, increasing hardness without increasing brittleness. This treatment maximizes lubricity, reducing friction during cutting and helping the tool run cooler and last longer.\u003c\/p\u003e\n\u003ch4\u003eHigh Spiral Flutes\u003c\/h4\u003e\n\u003cp\u003eHigh spiral flutes are designed for extremely fast operations and efficient chip evacuation. For contractors working in the field, faster chip clearing means less clogging, reduced heat buildup, and more consistent hole quality.\u003c\/p\u003e\n\u003ch4\u003e3-Flats Reduced Shank\u003c\/h4\u003e\n\u003cp\u003eThe 3-flats reduced shank is specifically designed for use in portable power tools, allowing secure seating in standard 3-jaw chucks. This makes the reamers practical for on-site use without requiring specialized equipment.\u003c\/p\u003e\n\u003ch4\u003eTapered Point\u003c\/h4\u003e\n\u003cp\u003eThe tapered point allows for easy realignment of holes, which is critical when working with misaligned structural members or pre-drilled components. This feature saves time by guiding the reamer into position without additional setup steps.\u003c\/p\u003e\n\u003ch4\u003eSafety Collar on Shank\u003c\/h4\u003e\n\u003cp\u003eA safety collar on the shank prevents over-penetration during reaming operations. This protects both the workpiece and the operator, reducing the risk of tool breakthrough and maintaining consistent hole depth.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003eEnlarging Holes in Metal\u003c\/h4\u003e\n\u003cp\u003eThese reamers are purpose-built for enlarging existing holes in metal to precise dimensions, making them essential for structural steel and fabrication work where hole sizing is critical.\u003c\/p\u003e\n\u003ch4\u003eAligning Misaligned Holes in Metal\u003c\/h4\u003e\n\u003cp\u003eThe tapered point and high-spiral flutes make these reamers effective for correcting misaligned holes in metal components, a common requirement in steel erection and ironwork.\u003c\/p\u003e\n\u003ch4\u003eReaming with Portable Power Tools\u003c\/h4\u003e\n\u003cp\u003eThe 3-flats reduced shank is designed for use in portable power tools with standard 3-jaw chucks, enabling contractors to perform reaming operations on-site without stationary equipment.\u003c\/p\u003e\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMetal (general — enlarging and aligning holes)\u003c\/li\u003e\n\u003c\/ul\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_be6ffe26-e68f-4c36-a9c1-7092b2d588c6.pdf?v=1793625085\" target=\"_blank\" rel=\"noopener\"\u003eSafety Data Sheet (SDS)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/cinakvujelpexceens0b_d3c35bfa-3b81-4e0e-a664-58e3fd24e701.pdf?v=1793625084\" target=\"_blank\" rel=\"noopener\"\u003eDrillco 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 and usage, high speed steel products do not present inhalation, ingestion, or other chemical hazards.\u003c\/li\u003e\n\u003cli\u003eOperations such as grinding, cutting, machining, burning, and welding may release dusts, fumes, or vapors that may 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 (component): listed as a carcinogen by NTP and OSHA; associated with dermatitis, inflammation and\/or ulceration of the upper respiratory tract, and possibly cancer of nasal passages and lungs.\u003c\/li\u003e\n\u003cli\u003eTungsten (component): some evidence of pulmonary involvement such as cough.\u003c\/li\u003e\n\u003cli\u003eVanadium (component): eye and respiratory tract irritant.\u003c\/li\u003e\n\u003cli\u003eCobalt dust from grinding is reported 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\u003eNFPA Hazard Rating: Health 1; Flammability 0; Reactivity 0.\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\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 these materials.\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 might 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\u003c\/ul\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePerform grinding, cutting, and machining operations in well-ventilated areas; use 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 the end of the 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\u003eClean up using methods that avoid dust generation such as vacuum (with appropriate filters), wet dust mop, or wet clean up.\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\u003eSoiled clothing should be laundered separately.\u003c\/li\u003e\n\u003cli\u003eIncompatible materials: strong acids, strong oxidizers.\u003c\/li\u003e\n\u003cli\u003eEmergency phone number: CHEM-TEL INC 1-800-255-3924.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the NITRO 428N3S set designed to do?\u003c\/strong\u003e\u003cbr\u003eA: The 428N3S set is designed for enlarging holes in metal, aligning misaligned holes in metal, and reaming with power tools that use standard 3-jaw chucks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What sizes are included in the 3 PC set?\u003c\/strong\u003e\u003cbr\u003eA: The set covers sizes from 1\/2\" to 3\/4\" and includes 3 reamers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What type of shank do these reamers have, and what tools can they be used with?\u003c\/strong\u003e\u003cbr\u003eA: These reamers feature a 3-flats reduced shank, which is designed for use in portable power tools equipped with standard 3-jaw chucks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What material are the reamers made from, and what surface treatment is applied?\u003c\/strong\u003e\u003cbr\u003eA: The reamers are made from premium grade HSS (high speed steel) and feature a black and gold surface treatment that adds a hard, protective layer for maximum lubricity, increasing hardness without increasing brittleness.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is there a feature to prevent the reamer from going too deep into the workpiece?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Each reamer includes a safety collar on the shank specifically designed to prevent over-penetration during reaming operations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Where are these reamers manufactured?\u003c\/strong\u003e\u003cbr\u003eA: The NITRO Heavy-Duty Construction Reamers are manufactured in the United States by DRILLCO.\u003c\/p\u003e","brand":"Drillco","offers":[{"title":"Default Title","offer_id":67924568375470,"sku":"428N3S","price":323.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/1e8be6a0-ca91-4fbe-a8bd-a0affcf5d510_4a7935f0-670f-4981-af4e-360217640f2f.png?v=1793824475","url":"https:\/\/www.diamondtoolstore.com\/products\/nitro-heavy-duty-construction-reamers-3-pc-set","provider":"Diamond Tool Store","version":"1.0","type":"link"}