ROAD POWER 100 Ft. 14 Ga. PVC-Coated Primary Wire, Green Trex Adirondack & Rocking They have a 3-flatted shank

They have a 3-flatted shank to prevent slipping in drill chucks and the shank also includes a hole for wire pulling

Other features include nick-resistant double-bevel blades

and safety factors

Also suitable for installation over wood substrates

Includes 4-1/2" metal grinding wheel

ROAD POWER 100 Ft. 14 Ga. PVC-Coated Primary Wire, Green Trex Adirondack & Rocking They have a 3-flatted shankGeneral purpose wiring for automobiles, boats, trucks, buses, tractors, trailers, and other motor driven equipment. Primary wire intended for use is surface electrical systems 60 DC volts (25 AC volts) or less. Single conductor stranded copper insulated with color coded PVC that is impervious to oil, grease, and diesel fumes. Temperature range from 20 deg. C. to +60 deg. C. Manufacturer part number includes color code at end. 11 Black, 12 blue, 14