Irwin Industrial Tools 10502 Unibit 502 Step Drill Bit Set, 3-Piece

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Manufacturer: IRWIN

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Brand: Irwin
Manufacturer: IRWIN
Model: 10502

Features
Single-flute cutting edge for greater control through steps 3 Flatted shank prevents slipping in drill chuck Non-skid self-starting tip eliminates skidding and the need for center punching. Features an easy-to-sharpen, self-starting tip that eliminates skidding Full lifetime warranty

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Editorial Reviews:
3 Piece, Drill Unibit Set, Includes: #1 Unibit Drills 1/8" -1/2" In 1/32 Steps, #2 Unibit Drills 3/16" To 1/2" In 1/16" Steps & #3 Unibit Drills 1/4" To 3/4" In 1/16" Steps, Bits Are Made Of High Speed Steel & Have A Single Fluted Cutting Edge For Greater Control & Rounder Holes, Carded.

User Comments about the Irwin Industrial Tools 10502 Unibit 502 Step Drill Bit Set, 3-Piece

A step bit eliminates that, by drilling in steps - just a 1/16" at a time. At over $50 a set, it would be nice to not have them in a tool box drawer getting banged around. The bits deserve five (and protection). GREAT BITS.If you haven't used a step bit to drill sheet metal, you have no idea how nice they are. Four stars for lack of a box, while advertising that there is one.

You know when you're drilling sheet metal and when the drill punches through, the back side of the hole is really ugly and has sharp things (burrs) attached. Want a 7/16" hole. Just count the number of steps, and drill that many. Simple.If you have variety of holes to drill of different sizes, you don't have to change bits.Obviously they don't work on thick material.They are pictured with a box (drill index) yet didn't ship with one.

It is a great set to have, I wish I would have bought this many years sooner. The product shows a case, and mine did not come in a case.