Designed to remove broken studs, bolts, socket screws, and fittings
Aggressive left hand spiral design for extra gripping power
Easy out style spiral flutes embed themselves to increase grip as resistance increases
Extractor size and recommended drill bit size are etched on each tool
Set includes spiral flute screw extractors sizes EX-1, EX-2, EX-3, EX-4, EX-5; drill bit sizes 5/64", 7/64", 5/32", 1/4", 19/64", and a metal index case
IRWIN Screw Extractor/ Drill Bit Set, 10-Piece (11119)