90° DEGREE HSS Single-Flute Countersink SET NEW!! Sizes: 1/4, 3/8, 1/2, 5/8, 3/4. Designed for general purpose countersinking, channeling and deburring. Used in machine tool or hand-held applications.The item "Tools 100 Piece 1/4 Shank Router Bit Set Tungsten Carbide Woodworking Kit V" is in sale since Monday, October 24, 2011. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\CNC & Metalworking Supplies\End Mills". The seller is "discount_machine" and is located in Saint Charles, Illinois. This item can be shipped worldwide.