HUOT Tap & Drill Master Index - Size Range: National Fine/National Coarse-#6-1/2" MODEL .: 12700 For Cutting Tool: Taps & Drills Price For: Each Storage Unit Type: Tap & Drill Index Minimum Tap Thread Size Compatibility (Inch): #6-40 Maximum Tap Thread Size Compatibility (Inch): 1/2-20 Overall Width (Inch): 12-13/16 Overall Depth (Inch): 4-1/8 Overall Height (Inch): 1-7/32 Material: Steel Thread Standard Compatibility: UNC; UNF Color: Gray