{"product_id":"drill-america-1-3-8ft-12-unf-high-speed-steel-bottoming-tap","title":"Drill America 1-3\/8ft-12 UNF High Speed Steel Bottoming Tap","description":"\u003cp\u003eOur review of the Drill America 1-3\/8'-12 UNF High Speed Steel Bottoming Tap finds it best suited for machinists and hobbyists who need to generate threads to the bottom of a blind hole or re-thread damaged fasteners. The bottoming style design lets the tool finish threads as close to the hole bottom as possible, which is the single biggest reason to choose this tap for repair work or tight-depth applications. It is a simple, uncoated high speed steel hand tap intended for hand or machine tapping and offers straightforward performance when used within its expected limits.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottoming style:\u003c\/strong\u003e Designed to generate full threads to the bottom of a blind hole so you can seat a fastener deeply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh speed steel:\u003c\/strong\u003e The HSS substrate balances edge sharpness and toughness for general machine tapping and hand use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUncoated finish:\u003c\/strong\u003e The tool comes without additional coatings, making it suitable for a range of materials and avoiding coating-related galling issues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-piece supply:\u003c\/strong\u003e Sold as a single bottoming tap so you can replace a worn bottom tap or complete a set that includes taper and plug styles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachine or hand use:\u003c\/strong\u003e The tap works for manual tapping or under power in general machine or CNC tapping setups when used with proper feeds and lubrication.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Drill America bottoming tap is ideal for metalworkers, maintenance techs, and fabricators who routinely need to create or restore threads in blind holes, especially where a fastener must reach the bottom of the hole. It is also a practical choice for hobby machinists working with materials like aluminum and mild steel who value a sharp HSS cutting edge.\u003c\/p\u003e\n\u003cp\u003eThose who need coated taps for extended life in abrasive or high-temperature production environments, or who frequently thread hardened steels, should look to specialty coated or ground taps designed for those specific conditions instead of an uncoated HSS hand tap.\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\u003eSharp HSS cutting edge makes initial thread engagement and cutting in softer metals straightforward.\u003c\/li\u003e\n\u003cli\u003eBottoming geometry allows threading to the hole bottom for clean, deep fastener seating.\u003c\/li\u003e\n\u003cli\u003eVersatile for hand tapping or use under power in general machine or CNC applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUncoated HSS can wear faster than coated alternatives and may not be ideal for very hard or abrasive materials.\u003c\/li\u003e\n\u003cli\u003eSome users report breakage when used improperly or in very hard materials, so careful technique is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct name\u003c\/td\u003e\n\u003ctd\u003e1-3\/8'-12 UNF High Speed Steel Bottoming Tap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread size\u003c\/td\u003e\n\u003ctd\u003e1-3\/8'-12 UNF\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\u003eStyle\u003c\/td\u003e\n\u003ctd\u003eBottoming tap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eUncoated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003eHand tapping, general machine tapping, CNC tapping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Drill America 1-3\/8'-12 UNF HSS bottoming tap is a practical, value-focused choice for anyone needing to cut threads to the bottom of a blind hole or re-thread damaged threads in common metals. It delivers sharp cutting performance and versatility for hand or machine use, though buyers should accept the tradeoff of an uncoated HSS tool and use careful technique to avoid breakage in harder materials.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this tap be used by hand?\u003c\/strong\u003e\u003cbr\u003eYes, the HSS hand tap is intended for hand use as well as machine or CNC tapping when used with appropriate lubrication and proper feed rates.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the tap coated for extra durability?\u003c\/strong\u003e\u003cbr\u003eNo, this bottoming tap is uncoated, offering the base HSS substrate without additional surface treatments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it cut threads to the bottom of a blind hole?\u003c\/strong\u003e\u003cbr\u003eYes, the bottoming style is specifically designed to generate threads up to the bottom of a blind hole for deep fastener engagement.\u003c\/p\u003e","brand":"Drill America","offers":[{"title":"Default Title","offer_id":48699895677147,"sku":"B00FXJZCAQ","price":85.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/616FkFKRkiL._SL1500_f2d59845-7a19-4ce0-8d25-ee20075e2bae.jpg?v=1778843571","url":"https:\/\/gearmusthave.com\/products\/drill-america-1-3-8ft-12-unf-high-speed-steel-bottoming-tap","provider":"GearMustHave","version":"1.0","type":"link"}