Spline Screw Extractor Set Broken Stud Bolt Removal Hex Head. 1XSpline Screw Extractor Set. Hex shaped head. Designed to remove broken studs and bolts. Reverse spiral design for maximum grip. Contents: 1/8"(3.2mm), 5/32"(4mm), 3/16"(4.8mm), 7/32"(5.5mm), 1/4"(6.3mm), 9/32"(7mm), 5/16"(8mm), 11/32"(8.7mm), 3/8"(9.5mm), 13/32"(10.3mm).
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