{"product_id":"drillco-350n121-nitro-21-64-mechanics-length-drill-bit","title":"DRILLCO WAL-350N121 - Nitro 21\/64\" Mechanics Length Drill Bit","description":"\u003csection class=\"product-overview\"\u003e\u003cp\u003eThe Drillco 350N121 Nitro is a premium 21\/64-inch mechanics length drill bit engineered for extreme performance in hard metals, utilizing M-7N Molybdenum High Speed Steel with a specialized nitride surface treatment. Designed to penetrate stainless steel and work-hardened alloys where standard bits fail, it features a heavy-duty web construction and a 135-degree split point for instant centering without pilot holes.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"performance-features\"\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNitro Nitride Treatment:\u003c\/strong\u003e proprietary surface hardening creates a protective layer measurably harder than standard HSS, significantly extending edge life in abrasive materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM-7N High Speed Steel:\u003c\/strong\u003e Manufactured from premium molybdenum-grade steel for superior heat resistance and torsional strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e135° Split Point:\u003c\/strong\u003e Self-centering tip reduces thrust requirements and eliminates \"walking\" on curved surfaces or pipes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanics Length Geometry:\u003c\/strong\u003e Shorter and more rigid than jobber bits, providing maximum breakage resistance and accuracy in hand-held drilling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-Flat Shank:\u003c\/strong\u003e Ground flats on the shank prevent spinning in keyless chucks, ensuring maximum torque transmission.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack \u0026amp; Gold Finish:\u003c\/strong\u003e Dual-surface treatment provides optimal lubricity and corrosion protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"technical-specifications\"\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\" width=\"100%\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNitro (350N)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e21\/64 in (0.3281 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM-7N Molybdenum HSS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMechanics Length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-1\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlute Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2-9\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePoint Angle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e135° Split Point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-Flat (Round with Flats)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack \u0026amp; Gold Oxide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/section\u003e\u003csection class=\"whats-included\"\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e(1) 21\/64\" Nitro Mechanics Length Drill Bit (350N121)\u003c\/li\u003e\u003c\/ul\u003e\u003c\/section\u003e","brand":"DRILLCO","offers":[{"title":"Default Title","offer_id":53238711681390,"sku":null,"price":4.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0057\/0333\/6025\/files\/Untitled-2026-01-26T084806.668.jpg?v=1769392109","url":"https:\/\/wiselinetools.ca\/en-fr\/products\/drillco-350n121-nitro-21-64-mechanics-length-drill-bit","provider":"Wise Line Tools","version":"1.0","type":"link"}