Rotabroach Cutter Kit, Fractional. Blair Equipment 11090 BLR. This kit was my Demo out of my MAC Service Truck. As such there may be smudges, discoloration or slight surface rust. I had warranteed the 9/16 and 5/8 and did not get them replaced before my retirement. To compensate I have included an extra Pilot ~have the Arbor set up with a 3/4 cutter, washer and pilot~ have included an extra 5/16 and 1/2 cutter for the two missing. Fits 3/8 and 1/2 hand held drill chucks Patented tooth geometry prevents chip clogging when cutting steel, sheet metal or plastics. Have had nothing but positive feedback on this kit from my route customers! Made in the USA. Shipping will be USPS PRIORITY. Thanks for shopping with us!!