D3730 5 pc. Step Drill / Countersink Set

A handy set for your sheet metal drilling and countersink needs.

This TiN-coated D3730 5-piece Step Drill and Countersink Set includes a metric step drill, a fractional step drill, and three 5-flute countersinks.

The step drills bore perfect holes in sheet metal from 4mm to 12mm in 1mm increments and 3/16" to 7/8" in 1/16" increments without the need to change bits.

Both step drills have quick release 1/4" hex shanks and laser etched markings.

The three 82° countersinks come in 3/8", 1/2" and 3/4" diameters and feature 1/4" round shanks.

Crafted with durability in mind, TiN coating contributes to a cleaner and more precise cut.

To keep you organized, a see-thru wooden storage box is included.