5Pcs Screw Extractor Center Drill Bits

Convenient and efficient
Long service life
Apply to remove all kinds of broken head bolt, screw.
Used for maintaining at home, office, etc.
Size: as picture shows
Material: Steel
Model: 1/8", 1/4", 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