5 Or 6Pcs Screw Extractor Center Drill Bits Guide Set Item NO.: 2168960

Removes damaged screws that can not be removed with a standard screwdriver.
Remove all kinds of broken or damaged head bolts, screws, and studs.
Convenient and efficient, long service life.
Black oxide finished for durability.

Sizes:
NO.1: 1/8" - 1/4"
NO.2: 1/4" - 5/16"
NO.3: 5/16" - 7/16"
NO.4: 7/16" - 9/16"

NO.5: 9/16" - 3/4"

NO.6 : 3/4"-1.0"

Thread Removal Range:
- 1/8" - 1/4": for M3 - M6
- 1/4" - 5/16": for M6 - M8
- 5/16" - 7/16": for M8 - M11
- 7/16" - 9/16": for M11 - M14
- 9/16" - 3/4": for M14 - M18

3/4"-1.0"  : for M18-M25

Material: Steel