Calvan Alstart 439 9-Piece 3/8" & 1/2" Drive Stripped Bit Socket Set - Metric multimeters SmartFlex™ hoses offer premium performance

SmartFlex™ hoses offer premium performance Abrasion-resistant outer cover

Includes bushing to drill to tap size when extractor cannot be used

They carry our Lifetime Warranty against defects in materials and workmanship

Air stream nozzle has a natural angle for easy use

Calvan Alstart 439 9-Piece 3/8" & 1/2" Drive Stripped Bit Socket Set - Metric multimeters SmartFlex™ hoses offer premium performanceUsed for removing rounded or stripped fasteners with internal drive heads. Can be used on new screws as well. Reverse twist in the hex key bites into stripped out hex for easy removal. Full range to remove most common sizes. 3 8" drive: 4mm, 5mm, 6mm and 7mm 1 2" drive: 8mm, 10mm, 12mm, 14mm and 17mm.