Make accurate diameter holes while reducing the amount of chips with Travers' wide selection of circle cutting trepanning tools, hole cutters and annular cutters. Our stock of cobalt & carbide-tipped annular cutters are great for tougher materials. Or, our tin-coated cutters can be used for increased wear-resistance. We also carry high-speed steel - great for general purpose hole making; or blumax coating for protection against corrosion. Choose from several high speed steel annular cutter sets; sheet metal holcutters set, arbor & accessories, and other trepanning tools.