30Pcs 1/4inch HSS Quick Change Titanium Cone Coated Steel Step Drill Bit Set With Case

Newhigh-qualitythree-pieceHSSstepdrill
Adrillbitcanreplacethemulti-branched
UniversalLittleHelper

Suitablefor： Productsforautomotiveprocessing,aerospace,sheetmetalprocessing, installationandmaintenanceofelectricalandotherindustries, high-altitudeoperationswithhanddrillsandothertools.
Feature：
1,Theuniquestepstructure,avarietyofstandardsizedrillcarveaperture,aboxarrivedonaladderdrillbit.
2,Withouttheuseofcenterpunch,easytobreak,astepdrillspecificationsapply.
3,Deburring,chamfering,expandingtheovalhole
4,Smallsway,withoutleadingtouseacenterpunchcancarveoutaniceaperture. Surfacetreatment:Titanium
Sizes:
6StepBitfrom3/16"to1/2"
9StepBitfrom1/4"to3/4"
13StepBitfrom1/8"to1/2"

PackageIncluded:
1x3PCHSSstepdrill（withbox）










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