3/8 drive professional grade socket. Self-adjusts for all shapes and size fasteners except a perfectly round head, just file and edge.
Self-adjusts from ¼” to ¾” standard and 7mm-19mm metric.
Has a torque of over 100 LB/FT of power.
Drill adaptor turns any drill into a Power Socket Set. Adapter and 3/8 Drive reversible ratchet included
Replaces a tool box full of tolls and so easy to use.