3PCS HSS Step Drill Bit Set Large Cone Titanium Bit Set Metal Hole Cutter +Pouch

Specifications: Size: 4-12mm/4-20mm/4-32mm Material: high speed steel Surface treatment: Nitriding (black) Features:Quick Release Quantity:3Pcs/set 4-12 Drill Bit: 5 Steps (Diameter 4, 6, 8, 10, 12mm) 4-20 Drill Bit: 9 Steps(Diameter 4, 6, 8, 10, 12, 14, 16, 18, 20mm) 4-32 Drill Bit: 15 Steps(Diameter 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm) What's included : 3 x Spiral Step Drill Bit 1 x Pouch.

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