3pcs HSS Spiral Grooved Step Drill Drills Bit 4mm To 12mm20mm32mm Cut Tool Set

3pcsHSSSpiralGroovedStepDrillBit4-12/4-20/4-32



Features:

Noneedforapilothole

Titaniumcoatedtoreducefrictionandruncooler

Largebithas3sidedshank.

Automaticallydeburrholesasyoudrill

Highspeedsteel,durable.

Widelyusedtocutholesinavarietyofmateriallikesteel,wood,thiniron,aluminumalloy,insulationboards,PVCsheet,ect











Specification:

:Golden(aspictureshown)

Material:Highspeedsteel

Surface:TitaniumPlated

Scop:thinironplate,aluminum,insulationpanels,PVCpanels4mmthicknesswithinthetimber.



4-12mm9Steps(4mm,5mm,6mm,7mm,8mm,9mm,10mm,11mm,12mm),7cm(L)

4-20mm9Steps(4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm),7cm(L)

4-32mm15Steps(4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm,32mm),10cm(L)









Packageincluded:

1x4-12mmSpiralGroovedDrill

1x4-20mmSpiralGroovedDrill

1x4-32mmSpiralGroovedDrill
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