Titanium Coated HSS Step Drill Bit Set with Metric Size Product nameStep Drill Bit SetModel No.MT-DB-006Pcs In one Set4pcsSize of Each#1:3-12mm 10 Steps(3mm,4mm,5mm,6mm,7mm,8mm,9mm,10mm,11mm,12mm)7.5cm(L)#2: 4 -12mm 5 Steps (4mm,6mm,8mm,10mm,12mm),6.5cm(L)#3: 4-20mm 9 Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm),7.5cm(L)#4: 4- 32mm 15 Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm,32mm)10cm(L)Applicationmetal/Wood DrillMaterialHigh Carbon SteelTICN CoatedTypeStep DrillShank TypeHexShankProcessing TypeFull GroundedMOQ5 sets Lead Time 10dayCompany Information