Spiral Flute:
Designed to remove broken studs, bolts, screws & fittings.
Aggressive left hand spiral design for extra gripping power.
9pcs Screw Extractor Set of auto repair tool.Screw extractor set, made of hi-grade steel.Heat-treated process.Quick and easy way to remove broken screws, pipes, bolts and studs.Removes screw size:No.1 1/8" - 1/4" (M3-6)No.2 1/4" - 5/16" (M6-8)No.3 5/16" - 7/16" (M8-11)No.4 7/16" - 9/16" (M11-14)No.5 9/16" - 3/4" (M14-18)No.6 3/4" - 1" (M18-25)No.7 1" - 1 1/8" (M25-28)No.8 1 1/8" - 1 1/4" (M28-32)No.9 1 1/4" - 1 7/16" (M32-36)Drill Size:No.1 7/64"No.2 9/64"No.3 5/32"No.4 1/4"No.5 19/64"No.6 13/32"No.7 17/32"No.8 13/16"No.9 1 1/16"Size: