DZ-72 Go-through Driver

Sharp and Fine-pitch Spiral Tip removes damaged hex socket screws easily!
Works with 2~5mm (Across Flats) stripped hex socket of cap bolt, countersunk or button head
Comes with an ergonomic handle grip with 13mm hex. bolster
Sharp & fine-pitch spiral tip grips a hex socket without slippage.
Also useful as an extractor for other screw drives such as Phillips, Torx, etc. if an electric drill is used to make a pilot hole (The process described below.)
Bit size : 105mm x Hex. 6.35mm (DBZ-62/63/64/65)
Bit material : High carbon steel