Manufacturer Part Number: 1230-4202|Collet Type|RoundCollet Size (Inch)|Collet Size (mm)|2.50Material|SteelHead Diameter (Decimal Inch)|Head 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)|3.2810Overall Length (Inch)|TIR (Decimal Inch)|TIR (mm)|0.015Internal Thread Size|1.041 in-24External Thread Size|1.242 in-20Minimum Grip (Decimal Inch)|Minimum Grip (Inch)|Maximum Grip (Inch)|Maximum Grip (Decimal Inch)|Product Service Code|5136UNSPSC Code|