4-12/20/32mm HSS Hex Shank Spiral Groove Step Cone Drill Bit Hole Cutter

Material: High speed steel

Quantity: 1PCS

Size	Step	Length
#1 4-12mm	9 Steps (4mm, 5mm,6mm,7mm,8mm, 9mm,10mm,11mm,12mm)	7cm
#2 4-20mm	9 Steps (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm,18mm,20mm)	7.3cm
#3 4-32mm	15Steps (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm,28mm, 30mm, 32mm)	10cm

 

3pcs hex HSS SPIRAL GROOVED STEP DRILL SET

Drop forged, heat treated, high speed steel, fully polish.

Take the guessing out of drilling by supplying the proper depth.

Note:
Please note that the package includes one step drill only.