This Fantastic 10 piece set includes 5 Cobalt
Left handed drill bits and
5 Multi-Fluted Screw Extractors.
5/64″, 7/64″, 5/32″, 1/4″ & 19/64″. Left handed
meaning they are a reverse flute so drilling out most
broken bolts and screws is fast and easy.
In many cases you don’t even need
to use an extractor. Simply put your drill in reverse and go to it.
This set also comes with 5 Multi-Fluted,Machined alloy steel
screw extractors. Sizes #1, #2, #3, #4, #5.
Simply drill a hole in the broken bolt.
The correct drill size is marked on the steel case.
Insert Screw Extractor in the hole and, with a Tap Wrench,
turn counterclockwise. The Screw Extractor acts
like a corkscrew.It grips into the sides of the drilled hole
and removes the broken part on its own threads without
damaging the threaded hole.