THE KEY TO PREVENTING OR REDUCING EXTRACTOR BREAKAGE: Every extractor has a maximum torque threshold! During tap removal, the torque needs to be increased depending on the broken tap's loosening condition. If the bolt is stuck, other tools must be used to loosen it before removal. Do not use brute force, as this can easily cause the flute to break VERSATILITY SIZE: This tap extractor set covers a wide range of sizes, -1#: 3 flute, M4, 6#; 2#: 3 flute, M5, 8-10#; 3#: 3 flute, M6, 12#-1/4; 4#: 3 flute, M7-8, 5/16''; 5#: 3 flute, M9-10, 3/8''; 6#: 4 flute, M11-12, 7/16-1/2''; 7 #: 4 flute, M14, 9/16''; 8#: 4 flute, M16, 5/8''; 9#: 4 flute, -20, 3/4''; 10#: 4 flute, M22- 24,7/8''-1 FOR RUSTED TAP BOLTS: the CYSFETENA Tap Extractor Set is specifically designed for removing stripped, rusted, broken, and corroded screws and bolts. The set uses reverse rotation with a tap wrench or a power drill to bite into damaged threads and extract stuck bolts. However, for extremely tight or heavily rusted bolts, you may need to use penetrating oil or other loosening methods first to prevent breaking the extractor flutes HIGH-SPEED STEEL MATERIAL: Our tap extractors was made from HSS steel, this tap extractor set is designed to be lasting and long-lasting. The hardened steel provides the strength needed to remove even the most stubborn stripped screws and bolts without the extractor set bending or breaking PRECISION ENGINEERING AND FINISH: This broken tap extractor set boasts precision engineering that ensures each extractor fits perfectly onto the damaged fastener. The fine threads are carefully crafted to provide a secure grip on the stripped screws or bolts, making removal less cumbersome Features:

Each tap extractor is specifically engineered for speedy grab-it and easy out broken screw taps.
Works for removing stripped, rusted, broken, or corroded screws and bolts.
Every tap extractor goes through rigorous quality testing, lasting to use.
Suitable for industrial screw and bolt removal and for everyday home repair work.

Specification:
Condition: brand new
Material: High Speed Steel
Weight Model: (Optional)

Specification Metric System British / US System
1# M4 6#
2# M5 8-10#
3# M6 12#-1/4
4# M7-8 5/16
5# M9-10 3/8
6# M11-12 7/16-1/2
7# M14 9/16
8# M16 5/8
9# M18-20 3/4
10# M22-24 7/8-1

Package List:
1-10#* Tap Extractor Set(boxed)

Note:
1. Please allow slight error due to manual measurement. Thanks for your understanding.
2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.
3.The product is not suitable for too tight break taps, if the tap is too tight it will make the extractor easy to break the jaws, the smaller the extractor the easier it will be to break the jaws.