• Front side measures American Standard
wood screw No. 0 to No.30 at one edge,
wire and screw diameters from 1/16" to
7/16" on opposite edge.
• Reverse Wire gage (BWG) from 17 to 0000
on one edge. New Standard or American
Wire gage (AWG) from 15 to 0000 on the opposite edge.
• Also includes 3" rule measuring screw lengths.
• Measures 4"x 1-3/8"
• Made of stainless steel.