The 492 5/16-2 is a 5/16-inch H.S.S. single-flute countersink with a 90-degree angle, identified as U.S.A. (FL).
It is typically used to create a 90-degree recess for seating compatible flat-head fasteners flush with or below a workpiece surface.
- Model: 492 5/16-2
- Size: 5/16
- Material: H.S.S. (high-speed steel)
- Angle: 90 degrees
- Flute configuration: Single flute
- Identification: U.S.A. (FL)
