| Manufacturer Part Number | 81644W |
| Cutter Diameter (Decimal Inch) | 0.375" |
| Cutter Diameter (Inch) | 3/8" |
| Length of Cut (Decimal Inch) | 1.500" |
| Length of Cut (Inch) | 1-1/2" |
| Overall Length (Decimal Inch) | 3.000" |
| Overall Length (Inch) | 3" |
| Number of Flutes | 4 |
| Shank Diameter (Decimal Inch) | 0.375" |
| Shank Diameter (Inch) | 3/8" |
| Coating | APLUS |
| Center Cutting | Yes |
| Weldon Flat | Yes |
| Product Type | Square End Mill |