3pcs Step Drill Bit Set (4-12mm, 4-20mm, 4-32mm)

• Set includes three high-speed steel (HSS) step drill bits for drilling clean holes in various materials. • Bit 1: 4-12mm (5 steps), shank diameter 6mm. Ideal for thinner materials. • Bit 2: 4-20mm (9 steps), shank diameter 8mm. Versatile for medium thickness. • Bit 3: 4-32mm (15 steps), shank diameter 10mm. For larger diameter holes. • Each step is precisely measured at 2mm intervals. • Suitable for drilling metal, plastic, wood, and thin sheet metal. • Features a self-starting tip to prevent walking and ensure accurate hole placement. • Brand new condition, suitable for electrical and general construction work.