52211 Points: 6 (part# 52211) This item features: -Reduced risk of fastener rounding. -Sockets apply up to 15pct more torque to fastener. -Drive Size: 3/8 in. -Drive Type: Square. -Opening Size: 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm. -Tip Type: Box. -Includes: (2) Socket Bars, Socket Clips. -Material: Alloy Steel. -Finish: Nickel Chrome. -Measuring System: Metric. -Quantity: 21 per bar. -Wt.: 1362 g. -Price is for 1 Set.