Description:4-12\/20\/32mm HSS Hex Shank Spiral Groove Step Cone Drill Bit Hole Cutter
Specification:
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
Features:
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. Package Included:1 x Step Drill
More Details: