Screw Extractor, [6 Pieces] Diyife Stripped Screw Remover, Damaged Screw Remover and Extractor Set, Speed Out Drill Bits Guide Set for Broken or Damaged Screw Made from H.S.S. 4341# Hardness 62-63hrc :
Pipe Broken Screw Extractor, Double Head Broken Screw Extractor, High-Carbon Steel Double Head G1/2in + G3/4in Car Repair Tool : Amazon.co.uk: DIY & Tools
BROKEN SCREW EXTRACTOR FOR IMPLANTS - REINER DENTAL