Step drill / cone cutter / drill bits 3pc set / kit 4mm - 32mm AT321

Professional tools for commercial or occasional use.

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.

A set of 3 step drills / stepped cone cutters.

Cuts a perfectly round hole in sheet metal.

SET Includes;

Small Drill; 4mm, 6mm, 8mm, 10mm and 12mm.

Medium Drill; 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm and 22mm.

Large Drill; 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm and 32mm.

Ideal for thin metals such as steel aluminium, copper, fiberglass, brass and PVC etc...

Fully polishing HSS steel, self starting design.

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

Complete in metal tin / case for easy storage and transportation