Irwin 10220 Unibit20 9/16-Inch to 1-Inch 1/2-Inch Shank Hole Enlarging Step Drill Bit Plumbing Tools Manufacturer Part Number: DE-706M

Manufacturer Part Number: DE-706M

and personal use

allowing for one handed operation

Item model number : RD00820310

There is no difficult float reading to be observed and no temperature tables required

Irwin 10220 Unibit20 9/16-Inch to 1-Inch 1/2-Inch Shank Hole Enlarging Step Drill Bit Plumbing Tools Manufacturer Part Number: DE-706MGet it all done with one when you choose Unibit stairstep bits. Single flute cutting edge provides precise depth control though all size steps. Shanks flat side surface ensures slip free chuck lock down. Blunt tip. hole enlarging bit may be used on stainless steel. copper. brass. aluminum. plastic. laminates and wood. Materials: Steel Drill Bit Range Min: 1 2quot; Drill Bit Range Max: 1quot. From the Manufacturer UNI BIT STEP DRILL #20 9 16 1" 8 SZ"