Fits Screw sizes 4-24 and bolts 0.19 in. – 0.375 in. #1: 1/16 inch, #2: 5/16 inch, #3: 3/8 inch, #4: 1/2 inch •The BOA 4 piece Damaged Screw Extractor Set is made from M3 Tool Steel and incorporates the patented reverse fluted spiral thread of the Grabit® •SIZES: Screw sizes: #1: 4-7, Bolt: M4, Screw #2: 6-10, Bolt: M5/6, Screw #3: 12-14, Bolt: M8, Screw #4: 16-24, Bolt: M10/12 •Laser marked and supplied with a sturdy keep safe case these are simple to use; just drill and go! •Made from high-quality hardened steel and will give years of use •Fits all standard variable speed drills and will cleanly remove a variety of screws and bolts
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