Facom Open End Roller Type Stud Driver, 3/4 Insert, 52 x 54 mm, Chrome Finish

The Facom has roller-type stud drivers with multi-diameter. The size of the drive is the 1/2 inch and the dimensions are 52 x 54 mm.

• Tighten or untighten due to its eccentric shaft, the knob grips the stud,for tightening or untightening