8-Piece Bi-Metal Hole Saw KitFeatures:Optimized teeth pattern for fast, consistent cutting of steel including stainlessKit contains the most popular sizes for basic electrical work: 7/8", 1-1/8", 1-3/8", 1-3/4", 2" and 2-1/2" (22, 29, 35, 44, 51 and 64mm) sawsRecommended for most major brands of 6" (152mm) recessed lighting fixturesBore through 2x4s in a single passMultiple leverage points for easy slug removalIncludes two arbors and a rugged carrying caseNOTE: Set pilot drill point 1/8" beyond tooth pointsWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.