DEWILL Broken Bolt Remover, Stud Extractor Tool to Locks and Removes 1/4-Inch to 1/2-Inch Rounded Studs, Hexagonal Flat - Suitable for Rust, Painted, Damaged Waste Bolts - - Amazon.com
Spurtar Stud Remover Fit 1/4" to 3/4" (6 to 19mm) Bolt Extractor Nut Splitter With Knurled Roller and Cam Lock, Stud Extractor Tool For Broken Bolt Remover or Seized Studs - - Amazon.com
Amazon.com: Sunex 8804m 1/2-Inch Drive 4 -Piece Metric Stud Puller Set : Beauty & Personal Care
Amazon.com: KS TOOLS 152.1100 Stud Extractor Set, 4 pcs, one Size, Clear : Tools & Home Improvement