Type 190-AL Left Hand Spiral
.Special Hi-Molybdenum tool steel. 135? split point for fast penetration and accurate starting without center punch .Ideal for drilling broken studs .Need for screw or bolt extractor may be eliminated. .Left hand spiral drill may loosen the bolt stud while drilling a hole for use of the screw or bolt extractor.
Left Hand Spiral 1/16-1/4 by 64ths 13 Piece Set