Universal joint inserts, 10 pieces Socket spanner tool set 3/8 inch.

Manufactured from heat treated chrome vanadium steel or strength and durability Polished Chrome finish Dynamic drive design for extra torque. Flexi joints improve access in hard to reach places Drive size: 3/8"" Drive 12 point single hex design Supplied in blow moulded tray for storage Sizes: 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm