HSS Step Drill Set by Bergen

-Top quality step drills by Bergen. Step drills offer a significant advantage over cone drills because they offer a positive stop when a hole reaches a certain size. With a cone drill it is easy for it to dig in and make a hole that is too large.

-Fully polishing HSS steel, self starting design.

-Perfect for drilling perfectly round holes in matierials up to approx 3mm thickness. Will drill Steel, Copper, Brass, Aluminium, plastic etc...

-Double flutes make a perfectly round hole and automatically deburr as you drill.

-Includes sizes;

• 4-12mm in 2mm Increments.
• 4-22mm in 2mm Increments.
• 4-32mm in 2mm Increments.

-Complete in metal storage case.19