The Blair Automotive and Fabricator's Holcutter Kit offers precision ground tools for larger holes in sheet metal up to 1/8" thick. They produce holes 3x faster and last 10x longer than twist drills or hole saws. This kit contains six popular sizes:7/8", 1-1/8", 1-3/8", 1-3/4", 2" and 2-1/2" cutters, arbor and extra pilot. Made in USA.