The Sunex 3649 3/8 in. Drive Impact Hex Driver Set includes SAE sizes from 3/16 in. to ½ in. and metric sizes from 4mm to 12mm. Each driver has been forged from high grade Cr-Mo steel， constructed as a solid one piece， and marked by both laser etching and roll stamping to ensure permanent socket identification. All of this ensures our drivers' professional-level performance--conveniently stored in one heavy duty storage case. Meets ANSI Standards.

Low profile design provides access in tight spaces

Cr-Mo steel sockets provide the strength and flexibility to handle high torque impact tools

Solid one piece construction eliminates weak points and increases durability

Laser etched and roll stamped markings ensure permanent socket identification

Comes in a convenient， heavy-duty storage case

All Sunex sockets meet ANSI Standards， ensuring peak performance and durability

Lifetime Warranty with SUNEXpress