Manufacturer Part Number: JN-203-A|Accessory Type|Jaw NutProduct Compatibility|18 in Kitagawa ChuckMaterial|Chuck Diameter Compatibility (mm)|Chuck Diameter Compatibility (Decimal Inch)|18.0000Thread Size|3/4-10Screw Size (mm)|Screw Size (Inch)|3/4Screw Size (Decimal Inch)|Mount Type|Outside Diameter (mm)|Outside Diameter (Decimal Inch - 4 Decimals)|Outside Diameter (Inch)|Serration Dimensions|Distance Between Mount Hole Centers (Decimal Inch)|1.9070Distance Between Mount Hole Centers (mm)|Groove Width (Decimal Inch)|0.9840Product Length (Decimal Inch)|Product Length (Inch)|3-1/4Product Width (Inch)|Product Height (mm)|Req'd # of Studs for Chuck|Product Height (Inch)|1.5000Product Width/Diameter (Decimal Inch)|1.4760Number Of Pieces|Distance Between Mount Holes (Fractional Inch)|UNSPSC Code|