Irwin 53635 Screw Extractor Set, 5-Piece, Steel, Specifications: Straight Flute

Swivels are bright-plated steel, securely fastened to screw, revolving freely. 135 deg split point ensures a true start and eliminates bit walking. Includes ST-1, ST-2, ST-3, ST-4 and ST-5 (9/64 in, 3/16 in, 15/64 in, 5/16 in, 3/8 in).