Manufacturer Part Number: 500-020|Collet Type|RoundCollet Size (Inch)|5/16Collet Size (mm)|Material|SteelHead Diameter (Decimal Inch)|1.4850Head Diameter (Inch)|Head Length (Inch)|Pilot Hole Size (Inch)|Pilot Hole Size (Decimal Inch)|Concentricity of Collet (Decimal Inch)|Head Thickness (Inch)|Overall Length (Decimal Inch)|Overall Length (Inch)|TIR (Decimal Inch)|0.0008TIR (mm)|Internal Thread Size|1.041 in-24External Thread Size|1.238 in-20Minimum Grip (Decimal Inch)|Minimum Grip (Inch)|Maximum Grip (Inch)|Maximum Grip (Decimal Inch)|Product Service Code|5136UNSPSC Code|27112800