COBALT MECHANIC'S LEFT HAND DRILL BIT EXTRACTOR KIT, 10 PIECE DEK10A | eBaydiy Tools

Left handed master extractor set for removing broken bolts, studs, screws and lugs
Includes five M42 cobalt mechanic’s length left-hand drill bits in 5/64\”, 7/64\”, 5/32\”, 1/4\” and 19/64\”
For fastener thread sizes 3/32\” – 5/8\” (M3-M16)
Five matching spiral fluted screw extractors labeled to pair with corresponding drill sizes
Use with reversible drill to drill into fastener, then extractor drives itself into drilled hole to remove broken fastener without damaging threads
Matco Exclusive