The 137-04801 is a high-speed steel machine countersink identified as 3/4X1/2-82 HS 4F MCH C'SNK. Its designation indicates a 3/4X1/2-82 size configuration, an 82-degree countersink, and a four-flute machine countersink design.
Machine countersinks of this type are typically used to create or finish countersunk recesses for flush seating of fasteners in general machining applications.
- Product model: 137-04801
- Product designation: 3/4X1/2-82 HS 4F MCH C'SNK
- Material: H.S.S. (high-speed steel)
- Type: Machine countersink
- Flutes: 4
- Countersink angle: 82 degrees
