Tooleye Total Length 80mm Carbide Drill Bits HRC45 HRC55 For Hard Metalworking CNC Tools Tungsten Steel Metal Drills 21-10mm Tooleye Total Length 80mm Carbide Drill Bits HRC45 HRC55 For Hard Metalworking CNC Tools Tungsten Steel Metal Drills 2.1-10mm ProductInformation: Name:TwistDrillBit Material:Carbide/TungstenSteel Diameter:2.1-9.0mm(increments0.1mm) ProcessingHardness:HRC45/HRC55 CoatingType:Uncoated/Nano-coating/BlueNano-coating Application:Widelyusedforprocessingmetalmaterialssuchascarbonsteel,castiron,moldsteel,alloysteel,toolsteel,stainlesssteel,etc. ApplicationDevice:PrecisionCNCequipmentsuchasCNCmachiningcenters,CNClathes,engravingmachines,benchdrills,etc. Productadvantages: 1.Theoverallmaterialismadeoftungstensteel,whichhasveryhighseismicresistanceandwearresistance. 2.Equippedwithalargecapacityspiralchipremovalgroove,theintegratedspiralgrooveensuressmootherchipremoval. 3.Thecuttingedgeofthedrillbithasananocoating,whichcanquicklycutanddrillholes,effectivelyreducingthenumberoftoolchanges. 4.Standardroundandstraightshankdesign,strongcompatibility,tightbite,highbearingcapacity,andnoteasytobreak Notices: 1.Tungstensteeldrillbitshaveveryhighhardness,buttheirrelativetoughnesswilldecrease,andarenotrecommendedforuseonequipmentwithpoorstability.Forexample,handhelddevices. 2.ThehighertheHRCvalue,thehigherthehardnessandwearresistanceofthemetalmaterialthatcanbeprocessed;Ifyouwanttoprocessmaterialssuchasaluminumandcopperthatarepronetoknifesticking,itisrecommendedtouseuncoatedHRC45drillbits. 3.Thediameterofthedrillbitisavailableinincrementsof0.1mmfrom0.5to20.0mm.Ifyoucannotfindthediameteryouneed,pleasecontactcustomerserviceforassistance. Pleasereadthefollowingbeforepayment: 1.FreeShipping:Whentheorderamountexceeds10USD,weprovidea"freeshipping"servicetomostcountriesaroundtheworld.Iftheorderstillshowsthattheshippingfeeneedstobepaid,pleasecontactcustomerserviceformodification. 2.Whenyouneedtopurchasemultiplespecifications,pleaseaddthemtotheshoppingcartbeforemakingthepayment,asthepricewillbemorefavorable;Ifyoufindthattheshippingcosthasbeenrepeatedlychargedwhenpurchasingmultipleproducts,pleasecontactcustomerserviceforprocessing,andwewillpromptlymodifytheorderforyou. 3.Pleasechecktheorderquantityandcorrespondingspecificationsbeforemakingpayment.Ifyouhaveanyquestionsaboutthisproduct,pleasefeelfreetocontactus!Wearehappytoprovideyouwithrelevantsuggestions. 4.Afterplacinganorder,duetotheuncertaintyofinternationaltransportationandlongdeliverytimes.Ifyouhaveanyquestionsordoubtsabouttheorderyoupurchased.Pleasecontactusandwewillprovideassistance.