Manufacturer Part Number: 1660600|Tap Type|StandardThread Size (Inch)|5/16-18Overall Length (Decimal Inch)|2.7205Overall Length (mm)|Thread Size (mm)|Thread Standard|UNCChamfer|BottomingMaterial|High-Speed SteelCoating/Finish|Bright/UncoatedThread Direction|Left HandCoolant Through|NoClass Of Fit|3BThread Limit|H3Number Of Flutes|4Oversize|NoThreads per Inch|18Thread Pitch (Decimal Inch)|Thread Pitch (mm)|Thread Pitch (Inch)|75% Thread Drill Size|Thread Length (Decimal Inch)|0.834Thread Length (Inch)|1-1/8Thread Length (mm)|Material Grade|Overall Length (Inch)|2-23/32Thread Depth (mm)|Thread Depth (Decimal Inch)|Amount Oversize (Decimal Inch)|Application|TappingShank Diameter (mm)|Shank Diameter (Decimal Inch)|0.318Tapping Depth (mm)|Tapping Depth (Decimal Inch)|Square Length (mm)|Square Length (Decimal Inch)|0.375Square Length (Inch)|Square Size (mm)|Square Size (Decimal Inch)|0.238Material Application|Aluminum; Cast Aluminum; Cast Iron; High-Carbon Steel; Low-Carbon Steel; Medium-Carbon SteelSeries|101LNeck Length (Decimal Inch)|1.3220Neck Length|Neck Length (Inch)|Shank Length (mm)|Shank Length (Decimal Inch)|Product Service Code|UNSPSC Code|