RJX 4-52mm HSS 6542 Titanium Coated Metal Step Drill Bit Cut Tool Set High Speed Steel Hole Cutter Cone Center Drill

Shank Diameter: 13mm

Material: HSS 6542

Net weight：436g

Unique ladder structure , it can open multiple Aperture

high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come

A unique staircase structure, a drill to open a variety of size aperture size, a step drill drill arrived on a box.

TWO-FLUTE DESIGN: clears chips faster and allows particles to escape easily