Might have owners marking Heavily used sockets. the 10 mm socket is not snap on its Blackhawk USA. SAE 3/8 drive 7/8 and 3/8 sockets included magnetic rail included The SNAP-ON 8-19mm 13 Piece 3/8″ 8mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 7/8in., 3/8in., 9mm Drive 6-Point Shallow Socket SET is a premium-quality set of sockets designed for automotive use. Made in the USA by Snap-on Tools, this set includes sizes ranging from 7/8 inch to 19mm, all with a chrome surface finish. The 6-point design allows for better grip on fasteners, making it easier to loosen and tighten. With a durable construction and Made in the USA guarantee, this socket set is a reliable choice for any mechanic or automotive enthusiast.