Extractor bolt remover drill bit guide kit, with bracket frame tool, size 4mm-11mm, used to remove damaged, rusted or exposed screws, studs, bolts, fasteners, metal taps and water pipes. It is made of HSS carbon steel, after two quenching, the hardness grade is 62-63HRC. Spiral spline design, used for powerful left-handed (puller) and right-handed (drills), drills with greater grip Diameters and diameters are recommended to engrave the broken screws recommended to be removed on each tool. Drill bits can also be used to drill holes in wood, metal, plastic, bricks and walls.
More details: Diameter extractor: E#1 is used for 1/8" -1/4" (3-6mm) E#2 is used for 1/4" -5/16" (6-8mm) E#3 is used for 5/16" -7/16" (8-11mm) E#4 is used for 7/16" -9/16" (11-14mm) E#5 is used for 9/16" -3/4" (14-18mm)