Suniga 3pcs 4-32mm High Speed Steel Hss Cobalt Multiple Hole Step Drill Bit Set Equal to 15 pcs drill bits

Description

Shank: 1/4" Hex ShankMaterial: 🔨HSS (Suitable for use in the hardness below 25 degrees workpiece, such as carbon steel, the thickness of the plate of step is 5mm)🔨Cobalt (reduces friction and lasts longer)Size:🔨4-32mm with 15 steps (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm,30mm,32mm)🔨4-20mm with 9 steps(4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm)🔨4-12mm with 5 steps (4mm, 6mm, 8mm, 10mm, 12mm) Package Included:3pc Hss Step Drill Bit 4-12mm,4-20mm,4-32mm