DEWALT Driver Bit #1 x 3-1/2" Robertson
Material
Efficient Width
10
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Description
DEWALT #1 Robertson driver bit measuring 3-1/2", used for driving square-drive screws in metal roofing, siding, and trim work. The extended length improves reach and control when fastening in deeper channels or tight locations. Commonly used with drill drivers for accurate screw engagement and reduced cam-out during installation.