Irwin 10235 Unibit5 1/4-Inch to 1-3/8-Inch 1/2-Inch Shank Step Drill Bit 20260313 5/8-11nc arbor for easy mounting

5/8-11nc arbor for easy mounting

12R threader ratchet | Used with 1/2" nominal pipe size | Comes complete with high speed die and is set at the factory | Unmatched durability and reliability

the Model 122XL is ideal for transport directly to the job site

all the way up to 1

Irwin 10235 Unibit5 1/4-Inch to 1-3/8-Inch 1/2-Inch Shank Step Drill Bit 20260313 5/8-11nc arbor for easy mountingIdeal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates Single flute cutting edge for greater control through steps Patented single flute cutting edge gives the user a true round hole every timeAmazon. ca Product Description IRWIN Tools 10235 Unibit Sheet Metal Step Drill Bit offers 10 different hole sizes in one single bit, from 1 4" to 1 3 8" in increments of 1 8". Ideal for drilling true,