{"product_id":"39-64in-x-12in-hss-extra-long-drill-bit-with-1-2in-shank-extra-reach","title":"39\/64in x 12in HSS Extra Long Drill Bit with 1\/2in Shank - Extra Reach","description":"\u003cp\u003eIn this review the Drill America 39\/64in x 12in HSS Extra Long Drill Bit is judged as a practical choice for jobs that demand extra reach without stepping up to carbide. It is aimed at hobbyists, fabricators, and maintenance techs who work in iron and steel where a longer bit is needed; the single biggest reason to buy is its combination of \u003cstrong\u003eextra length\u003c\/strong\u003e and a conventional 118 degree point that makes it straightforward to start holes and reach past obstacles.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-speed steel construction:\u003c\/strong\u003e Provides a useful balance of hardness and toughness for general purpose drilling in iron and steel materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack oxide finish:\u003c\/strong\u003e Adds lubricity and helps retain coolant near the cutting edge to reduce friction and extend bit life when used properly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtra long length:\u003c\/strong\u003e The 12in length gives significant reach for drilling through assemblies or awkward workpieces that shorter bits cannot access.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e118 degree point:\u003c\/strong\u003e A conventional tip that helps the bit center and start holes cleanly in a broad range of ferrous materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRound 1\/2in shank:\u003c\/strong\u003e Fits a wide variety of toolholding systems and is easy to clamp in standard chucks and collets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral flutes:\u003c\/strong\u003e Right-hand spiral evacuates chips up and out of the hole to reduce clogging on deep cuts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis drill bit is best for home shop owners, light industrial users, and maintenance personnel who regularly drill into mild steel, cast iron, and similar materials and need additional reach beyond standard lengths. It is a sensible choice when extra length is required but carbide or specialty coatings are not necessary.\u003c\/p\u003e\n\u003cp\u003eThose who frequently drill hardened steels, stainless in production volumes, or require maximum durability under heavy feed should look elsewhere to carbide or higher-performance coatings; likewise, users who need extreme precision at high RPMs may prefer specialized bits designed for that purpose.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGood general-purpose toughness from \u003cstrong\u003eHSS construction\u003c\/strong\u003e for common iron and steel tasks.\u003c\/li\u003e\n\u003cli\u003eExtra long 12in length solves reach problems without adapters or extensions.\u003c\/li\u003e\n\u003cli\u003eBlack oxide finish improves lubrication and coolant retention during drilling.\u003c\/li\u003e\n\u003cli\u003eRound 1\/2in shank works in most chucks and holders for easy setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDurability reports are mixed; some users note the bit can break under heavy side loads or aggressive feeds.\u003c\/li\u003e\n\u003cli\u003eNot optimized for very hard steels or high-production stainless use compared with carbide or specialized coated bits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e39\/64in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall length\u003c\/td\u003e\n\u003ctd\u003e12in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank\u003c\/td\u003e\n\u003ctd\u003eRound 1\/2in\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\u003ePoint angle\u003c\/td\u003e\n\u003ctd\u003e118 degree conventional tip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBlack oxide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Drill America 39\/64in x 12in HSS Extra Long Drill Bit is a practical, cost-effective option for anyone who needs reliable extra reach for drilling iron and steel. It delivers useful cutting performance and chip evacuation for general workshop tasks, but buyers should avoid aggressive side loads and consider stronger materials for high-production or very hard metal work.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this bit be used in a hand drill?\u003c\/strong\u003e\u003cbr\u003eYes, the round 1\/2in shank fits most hand drill chucks, but users should run at appropriate speeds and avoid excessive side pressure to reduce breakage risk.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this bit suitable for stainless steel?\u003c\/strong\u003e\u003cbr\u003eIt can drill softer grades of stainless in occasional use, but for frequent stainless work a carbide or specialty coated bit is a better choice.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the black oxide improve life?\u003c\/strong\u003e\u003cbr\u003eThe black oxide adds lubricity and helps retain coolant at the edge, which can extend life in many general purpose drilling applications.\u003c\/p\u003e","brand":"Drill America","offers":[{"title":"Default Title","offer_id":48252643115227,"sku":"B09BG27LYT","price":61.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/414sDlnuFfL._SL1280_acdd7bb8-3449-4dd6-81ba-c82856ff462b.jpg?v=1778292946","url":"https:\/\/gearmusthave.com\/products\/39-64in-x-12in-hss-extra-long-drill-bit-with-1-2in-shank-extra-reach","provider":"GearMustHave","version":"1.0","type":"link"}