Master Mechanic, 12 Piece Multi-Drive Bit Socket Set.(3) 3/8"-Drive Metric Hex Bit Sockets: 7mm, 8mm, 10mm (3) 3/8"-Drive SAE Hex Bit Sockets: 1/4", 5/16", 3/8"; (5) 3/8"-Drive Torx Bit Sockets: T-40, T-45, T-47, T-50, T-55 (1) 1/2"-Drive Torx Bit Socket: T-60

• Manufactured from alloy steel for better strength and longer tool life
• Size markings stamped on base for quick size identification
• Insert bits made of S2 steel for strength and durability
• Meets or exceeds ASME specifications
• 3/8" and 1/2" Drives
• Torx Bit Sockets
• Hex Bit Sockets Metric and SAE