·Designed to remove broken studs, bolts, socket screws and fittings

·Spiral flutes are designed to embed themselves deeper into the  metal as  you turn the tool, so as the fastener resistance increases,   the extractor's grip increases.

·Extractor size and recommended drill bit size are etched on each tool.

·Set includes:

Spiral Flute Screw Extractors in sizes:1#, 2#, 3#, 4#, 5#, 6#,

 Multi Spline Extractors in sizes:

  1/8",5/32", 3/16",7/32", 1/4", 9/32", 5/16", 11/32",3/8",13/32",7/16,15/32,1/2"

 Drill Bits in sizes:5/64", 7/64", 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 19/64",

   5/16", 11/32",3/8",13/32", 7/16", 15/32", 1/2"

·Material: drill bit: M2  , Screw Extractors ：GCR15,CrMo