50mm Drywall Scerw Setter screwdriver bit manufacturer oem factory china

1.Drywall Scerw Setter provide ideal depth control when installing drywall. 

2.They feature acollar that automatically stops the tool from overdriving a screw. 

3.This allows for consistent screw depthsand prevents damage to the drywall. 

4.The bits are insert style featuring a 1/4" hex shank intended for use inDrill Drivers.