Manufacturer Part Number: HR-81-2.5|Jaw Shape|SquareJaw Interface Type|SerratedMaterial|SteelMaximum Compatible Chuck Diameter (mm)|10.00Maximum Compatible Chuck Diameter (Decimal Inch)|10.0000Minimum Compatible Chuck Diameter (mm)|Minimum Compatible Chuck Diameter (Decimal Inch)|10.0000Distance Between Mount Hole Centers (Decimal Inch)|0.9840Distance Between Mount Hole Centers (mm)|Tongue Width (Decimal Inch)|Tongue Length (Decimal Inch)|Tongue Width (mm)|Fastener Size (mm)|12.00Fastener Size (Decimal Inch)|Key Size (Decimal Inch)|Slot Width|Slot Width (Decimal Inch)|Groove Width (mm)|Groove Width (Decimal Inch)|0.6300Tapped Hole Size|Overall Height (Decimal Inch)|Overall Height (Mm - 5 Decimals)|Overall Length (Inch)|4Overall Length (Decimal Inch)|4.0000Overall Length (mm)|Material Grade|1018Overall Width/Diameter (Decimal Inch)|Overall Width/Diameter (Inch)|1-1/2Maximum Internal Chucking Diameter (Decimal Inch)|Maximum Internal Chucking Diameter (mm)|Minimum Internal Chucking Diameter (mm)|Minimum Internal Chucking Diameter (Decimal Inch)|Maximum External Chucking Diameter (Decimal Inch)|Maximum External Chucking Diameter (mm)|Minimum External Chucking Diameter (mm)|Minimum External Chucking Diameter (Decimal Inch)|Includes|Overall Width/Diameter (mm)|Number Of Jaws|3UNSPSC Code|