IRWIN Tools 5 Piece Left Hand Cobalt 5/64-Inch to 19/64-Inch Cobalt Twist Drill Bit Assortment (30520)

Material: steel;
Model: 1/4 ", 1/8", 5/16 ", 7/16", 9/16 "
Thread removal range: 1/8 "~ 1/4" M3 ~ 6; 1/4 "~ 5/16" M6 ~ 8; 5/16 "~ 7/16" M8 ~ 11; 7/16 "~ 9/16" M11~14; 9/16 "~ 3/4" M14~18
Quality: carbon steel as a whole heat treatment, tough and durable
Remove the broken screws, bolts and studs without damaging the bolts or holes. The extractor has round flutes and is made of tempered chrome molybdenum steel.
is to remove the damaged screws; stripping screws; rusty screws; broken screws the best tool.

Different sizes of screw extractor to meet different needs, long service life.
It can remove some of the common screwdriver can not be disassembled damaged bolts, screws, bolts and pipes.
Use it will be easier to remove any damaged, peeled, rusted or cracked screws from any wood or metal surface.
5 different sizes of screw extractor for easy removal of any damaged screws.
Convenient and efficient removal of a variety of broken head bolts, screws.
Different sizes of screw extractor to meet different needs, long service life.
It can remove some of the common screwdriver can not be disassembled damaged bolts, screws, bolts and pipes.
Use it will be easier to remove any damaged, peeled, rusted or cracked screws from any wood or metal surface.
5 different sizes of screw extractor for easy removal of any damaged screws.
Convenient and efficient removal of a variety of broken head bolts, screws.

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Sixbox Broken Bolt and Damaged Screw Extractor, composed of five different sizes of screws,Removes All Kinds of Screws and Bolts.;