18PCS 1/2" Drive Impact Socket Set, Deep, Cr-V Steel, Metric,With Extension Bars

• Made from drop forged and heat treated chrome vanadium steel with a corrosion-resistant black phosphate finish
• 18 Pieces 1/2" Drive Deep Impact Socket Set(Metric): 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm; Extension Bars:3-inch, 5-inch, 10-inch
• 6-point flank drive design grips fastener more tightly on the flat sides and prevents rounding off at corners.
• Permanent high visibility laser etched size marking on each socket for quick size selection when working.
• Meets or exceeds ANSI performance standards. It comes with 1 year quality warranty.