Brand NEW Made of high strength Cr-Mo steel with high hardness, these lug nut removal sockets are more sturdy and durable. This is 14 pieces nut remover set that can be used with 3/8" square drive wrench, ratchet, or breaker bar for removing damaged, frozen, rusted, rounded-off bolts, nuts screws. The 6-point spiral socket design allows a secure connection to the rounded-off fastener to be extracted. These Lug Nut Removal Tools fit hex heads sized 6.35mm(1/4?), 8mm(5/16?), 9.5mm(3/8?), 10mm, 11mm(7/16?), 12mm, 12.7mm(1/2?), 13mm, 14mm(9/16?), 16mm(5/8?), 17mm, 17.5mm(11/16?), 18mm, 19mm(3/4?) to quickly replace rusting, rounded, or stripped lug nuts and bolts. Product description Material: Chrome Molybdenum Steel Color: Matte Silver Fit Head Size: 6.35mm(1/4?), 8mm(5/16?), 9.5mm(3/8?), 10mm, 11mm(7/16?), 12mm, 12.7mm(1/2?), 13mm, 14mm(9/16?), 16mm(5/8?), 17mm, 17.5mm(11/16?), 18mm, 19mm(3/4?) Case Size: 16.5 x 9.5 x 4cm/6.5? x 3.74? x 1.6? Item Weight: 773g/1.7lbs Package Includes: 14 x Nut Bolt Extractors Storage Case