{"product_id":"350n-nitro-mechanic-set-29-pc","title":"350N NITRO Mechanic Set, 29 PC","description":"\u003ch2\u003eDRILLCO 350N NITRO Mechanic Set, 29 PC — Heavy-Duty HSS Drilling Performance in a Complete Set\u003c\/h2\u003e\n\u003cp\u003eThe DRILLCO 350N NITRO Mechanic Set is a 29-piece premium grade HSS drill bit set covering 1\/16\" to 1\/2\" by 64ths, built for heavy-duty drilling in medium and high strength materials. Manufactured to NAS Type B specifications, these mechanic's length drills are engineered for both handheld power tools and fixed-spindle CNC operations. The black and gold surface treatment maximizes lubricity, while the 135° split point and 3-flats shank deliver self-centering accuracy and reduced chuck slippage. Made in the United States, this set is designed for trades professionals and contractors who demand consistent tool life and performance across demanding drilling applications.\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\u003e350N29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e045997491332\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiece Count\u003c\/td\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize Range\u003c\/td\u003e\n\u003ctd\u003e1\/16\" - 1\/2\" by 64ths\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrill Type\u003c\/td\u003e\n\u003ctd\u003eNAS Type B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength (Series)\u003c\/td\u003e\n\u003ctd\u003eMechanic's Length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePoint Angle\u003c\/td\u003e\n\u003ctd\u003e135° Split Point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank\u003c\/td\u003e\n\u003ctd\u003e3-flats for reduced slippage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePremium Grade HSS (M2 High Speed Steel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface Treatment\u003c\/td\u003e\n\u003ctd\u003eBlack and Gold\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\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eDrilling holes in medium and high strength materials, Heavy-duty drilling, Drilling in tighter spaces, Drilling with handheld power tools\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\u003ctr\u003e\n\u003ctd\u003ePackage Length\u003c\/td\u003e\n\u003ctd\u003e0.7874015748031495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Width\u003c\/td\u003e\n\u003ctd\u003e1.6732283464566928 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Height\u003c\/td\u003e\n\u003ctd\u003e2.854330708661417 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.7 lb\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\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e350N29\u003c\/td\u003e\n\u003ctd\u003eDRILLCO 350N 29PC NITRO MECHANIC SET 1\/16\"-1\/2\" BY 64TH Single Unit\u003c\/td\u003e\n\u003ctd\u003e1\/16\" - 1\/2\" by 64ths\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eHSS Material Composition (from SDS)\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003cth\u003e% by Weight\u003c\/th\u003e\n\u003cth\u003eCAS Number\u003c\/th\u003e\n\u003cth\u003eOSHA PEL\u003c\/th\u003e\n\u003cth\u003eACGIH TLV\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon\u003c\/td\u003e\n\u003ctd\u003e0–2\u003c\/td\u003e\n\u003ctd\u003e7440-44-0\u003c\/td\u003e\n\u003ctd\u003e3.5 mg\/m³\u003c\/td\u003e\n\u003ctd\u003e3.5 mg\/m³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChromium\u003c\/td\u003e\n\u003ctd\u003e0–5\u003c\/td\u003e\n\u003ctd\u003e7440-47-3\u003c\/td\u003e\n\u003ctd\u003e0.5 mg\/m³\u003c\/td\u003e\n\u003ctd\u003e0.5 mg\/m³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIron\u003c\/td\u003e\n\u003ctd\u003e70–90\u003c\/td\u003e\n\u003ctd\u003e7439-89-6\u003c\/td\u003e\n\u003ctd\u003e10 mg\/m³\u003c\/td\u003e\n\u003ctd\u003e5 mg\/m³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMolybdenum\u003c\/td\u003e\n\u003ctd\u003e5–10\u003c\/td\u003e\n\u003ctd\u003e7439-98-7\u003c\/td\u003e\n\u003ctd\u003e15 mg\/m³\u003c\/td\u003e\n\u003ctd\u003e10 mg\/m³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTungsten\u003c\/td\u003e\n\u003ctd\u003e5–10\u003c\/td\u003e\n\u003ctd\u003e7440-33-7\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e5 mg\/m³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVanadium\u003c\/td\u003e\n\u003ctd\u003e0–5\u003c\/td\u003e\n\u003ctd\u003e7440-62-2\u003c\/td\u003e\n\u003ctd\u003e0.5 mg\/m³\u003c\/td\u003e\n\u003ctd\u003e0.5 mg\/m³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePhysical \u0026amp; Chemical Properties (from SDS)\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAppearance and Odor\u003c\/td\u003e\n\u003ctd\u003eGrey-Black solid with metallic luster, odorless. Various shapes.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMelting Point\u003c\/td\u003e\n\u003ctd\u003eApprox. 2500° F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoiling Point\u003c\/td\u003e\n\u003ctd\u003eApprox. 5000° F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolubility in Water\u003c\/td\u003e\n\u003ctd\u003eNot Soluble\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVapor Pressure at 20°C\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVapor Density (air = 1)\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecific Gravity (H₂O = 1.0)\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEvaporation Rate (butyl acetate = 1)\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlash Point\u003c\/td\u003e\n\u003ctd\u003eNone Reported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNFPA Health Rating\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNFPA Flammability Rating\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNFPA Reactivity Rating\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eRegulatory \u0026amp; Compliance Information\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eStandard \/ Regulation\u003c\/th\u003e\n\u003cth\u003eStatus\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOSHA Hazard Communication Standard 29 CFR 1910.1200\u003c\/td\u003e\n\u003ctd\u003eNot hazardous under this criteria. Dust generated while using this product may be hazardous as noted in SDS.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSARA Title III Section 313 (40 CFR Part 372)\u003c\/td\u003e\n\u003ctd\u003eChromium and Vanadium are subject to supplier notification requirements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTSCA\u003c\/td\u003e\n\u003ctd\u003eComponents listed on TSCA inventory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNTP Carcinogen Listing\u003c\/td\u003e\n\u003ctd\u003eChromium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOSHA Carcinogen Listing\u003c\/td\u003e\n\u003ctd\u003eChromium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDOT Shipping\u003c\/td\u003e\n\u003ctd\u003eNot regulated by this mode of transportation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIATA Shipping\u003c\/td\u003e\n\u003ctd\u003eNot regulated by this mode of transportation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAFI Shipping\u003c\/td\u003e\n\u003ctd\u003eNot regulated by this mode of transportation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe 350N NITRO Mechanic Set distinguishes itself from standard HSS drill sets through its NAS Type B specification, mechanic's length design for improved rigidity and accuracy in confined spaces, and the black and gold surface treatment that provides superior lubricity compared to bright finish or black oxide alternatives. The 3-flats shank — a feature specific to the mechanic's length 350N series — actively reduces slippage in drill chucks, a critical advantage when working with handheld power tools on harder materials.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003ePremium M2 High Speed Steel Construction\u003c\/h4\u003e\n\u003cp\u003eAll NITRO drills are manufactured from premium quality M2 High Speed Steel, providing the hardness and wear resistance needed for heavy-duty drilling across a wide range of material groups including stainless steel. M2 HSS delivers longer tool life compared to general-purpose HSS, reducing the frequency of bit replacement on demanding jobsites.\u003c\/p\u003e\n\u003ch4\u003e135° Split Point for Self-Centering Accuracy\u003c\/h4\u003e\n\u003cp\u003eThe 135° split point is self-centering, eliminating the need for a center punch and reducing bit walking when starting a hole — especially valuable on curved or hard surfaces. This design also reduces thrust requirements, meaning less force is needed to initiate the cut, which reduces operator fatigue during extended handheld drilling operations.\u003c\/p\u003e\n\u003ch4\u003eBlack and Gold Surface Treatment for Maximum Lubricity\u003c\/h4\u003e\n\u003cp\u003eThe black and gold surface treatment applied to the body and flutes provides maximum lubricity, reducing friction and heat buildup during drilling. This treatment also offers better resistance to corrosion and breakage while reducing chipping and flaking, extending the usable life of each bit in the set.\u003c\/p\u003e\n\u003ch4\u003e3-Flats Shank for Reduced Chuck Slippage\u003c\/h4\u003e\n\u003cp\u003eThe 3-flats shank design is a feature specific to the mechanic's length 350N series and actively prevents the bit from rotating within the drill chuck under load. This is particularly important when drilling with handheld power tools where torque and vibration can cause round-shank bits to slip, compromising hole accuracy and safety.\u003c\/p\u003e\n\u003ch4\u003eMechanic's Length Design for Tighter Spaces\u003c\/h4\u003e\n\u003cp\u003eMechanic's length drills are shorter than jobber length drills, providing better rigidity, improved accuracy, and reduced deflection and breakage risk. This makes the 350N set well-suited for drilling in confined or restricted-access areas where a longer bit would be impractical or unsafe.\u003c\/p\u003e\n\u003ch4\u003eDual-Use: Handheld and CNC Compatible\u003c\/h4\u003e\n\u003cp\u003eThe 350N NITRO set is designed for use in both portable handheld power drills and fixed-spindle applications such as CNC machines and drill presses. This versatility makes the set a practical investment for contractors and shops that operate across multiple drilling environments.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003eDrilling in Medium and High Strength Materials\u003c\/h4\u003e\n\u003cp\u003eThe premium M2 HSS construction and black and gold surface treatment make the 350N NITRO set recommended for heavy-duty drilling in a wide range of material groups, including stainless steel and other high-strength metals.\u003c\/p\u003e\n\u003ch4\u003eHeavy-Duty Drilling Operations\u003c\/h4\u003e\n\u003cp\u003eThe NAS Type B specification and heavy-duty design increase tool life and performance in demanding drilling scenarios where standard HSS drills would wear prematurely.\u003c\/p\u003e\n\u003ch4\u003eDrilling in Tighter, More Confined Spaces\u003c\/h4\u003e\n\u003cp\u003eThe mechanic's length format provides better rigidity and accuracy in restricted-access areas, making these bits the preferred choice when jobber length drills are too long to maneuver safely.\u003c\/p\u003e\n\u003ch4\u003eHandheld Power Tool Drilling\u003c\/h4\u003e\n\u003cp\u003eThe 3-flats shank and 135° split point are specifically engineered to perform in handheld drill applications, where chuck slippage and bit walking are common challenges on harder materials.\u003c\/p\u003e\n\u003ch4\u003eCNC Machine and Drill Press Operations\u003c\/h4\u003e\n\u003cp\u003eThe NAS Type B specification and split point design make the 350N set suitable for fixed-spindle CNC and drill press applications requiring consistent, repeatable hole quality.\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_2d54ea3f-9b62-489e-b621-d01baecaa772.pdf?v=1793366020\" 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\/mmdfl5l1u5ie5htyl6lr_8876378a-7576-4cfe-a2e7-5d3516083cd6.pdf?v=1793366020\" target=\"_blank\" rel=\"noopener\"\u003eProduct Sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/cinakvujelpexceens0b_15b5626a-9208-4c41-9e61-84c03c22523f.pdf?v=1793366020\" target=\"_blank\" rel=\"noopener\"\u003eLinecard\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 which may present health hazards if exposure limits are exceeded.\u003c\/li\u003e\n\u003cli\u003eExcessive inhalation of metallic fumes and dusts may result in 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: listed as 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: some evidence of pulmonary involvement such as cough.\u003c\/li\u003e\n\u003cli\u003eVanadium: eye and respiratory tract irritant.\u003c\/li\u003e\n\u003cli\u003eMolybdenum: eye and mucous membrane irritant; individuals with kidney, chronic respiratory, or liver disease may be at increased risk.\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: can cause irritation or allergic skin rash due to cobalt sensitization.\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\u003eProtective gloves: Cloth or leather gloves recommended when contact with dust or mist is likely.\u003c\/li\u003e\n\u003cli\u003eEye protection: Wear safety glasses or goggles with side shields. Contact lenses should not be worn when handling these materials. Employer should provide an eye wash station within the immediate work area.\u003c\/li\u003e\n\u003cli\u003eHearing protection may be required.\u003c\/li\u003e\n\u003cli\u003eAlways use machine guards and wear safety glasses and protective clothing to prevent injury in the event of tool breakage.\u003c\/li\u003e\n\u003cli\u003eRespiratory protection: Use an appropriate NIOSH approved respirator if airborne dust concentration exceeds the appropriate PEL or TLV, per 29 CFR 1910.134.\u003c\/li\u003e\n\u003cli\u003eSoiled clothing should be laundered separately.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUse local exhaust ventilation adequate to limit personal exposure to airborne dust to levels that do not exceed the PEL or TLV.\u003c\/li\u003e\n\u003cli\u003eAll operations that generate dust or fumes should be performed in well-ventilated areas.\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 to 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. Store in a manner that prevents accidental environmental contamination from traces of industrial lubricants or wetting oils.\u003c\/li\u003e\n\u003cli\u003eIncompatible materials: Strong Acids, Strong Oxidizers.\u003c\/li\u003e\n\u003cli\u003eWaste disposal: Send to an appropriate reclamation facility if available; otherwise dispose in compliance with federal, state\/provincial, and local environmental regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What materials are the 350N NITRO drills recommended for?\u003c\/strong\u003e\u003cbr\u003eA: The 350N NITRO set is recommended for heavy-duty drilling in a wide range of material groups, including medium and high strength materials and stainless steel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the 350N mechanic's length and the 400N jobber length NITRO drills?\u003c\/strong\u003e\u003cbr\u003eA: The 350N is mechanic's length (shorter than jobber length), which provides better rigidity, improved accuracy, reduced deflection and breakage risk, and is better suited for drilling in tighter, more confined spaces. The 400N is jobber length, which provides extra reach and can be used in most general applications. Both share the same black and gold surface treatment and 135° split point.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can these drills be used in both handheld drills and CNC machines?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The 350N NITRO set is designed for use in both portable handheld power drills and fixed-spindle applications such as CNC machines and drill presses.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does the 3-flats shank do, and is it on all NITRO drills?\u003c\/strong\u003e\u003cbr\u003eA: The 3-flats shank reduces slippage in the drill chuck. According to the product sheet, the 3-flat shank is a feature specific to the mechanic's length (350N) drills in the NITRO line.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What size range does the 350N29 set cover?\u003c\/strong\u003e\u003cbr\u003eA: The set contains 29 drills covering 1\/16\" to 1\/2\" by 64ths.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are there any tips for maximizing the life of these drill bits?\u003c\/strong\u003e\u003cbr\u003eA: Speed, feed, and lubrication are all critical to cutting tool performance. The product sheet also notes that using metal cutting lubricants can increase drill life.\u003c\/p\u003e","brand":"Drillco","offers":[{"title":"Default Title","offer_id":67903513821358,"sku":"350N29","price":156.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/onggpjx6sqxcgoadmrse.jpg?v=1793366024","url":"https:\/\/www.diamondtoolstore.com\/products\/350n-nitro-mechanic-set-29-pc","provider":"Diamond Tool Store","version":"1.0","type":"link"}