The 139-00103 is a #1 x 3" long HS combination drill and countersink, designed to perform drilling and countersinking with a 60-degree countersink angle.
This type of combination tool is typically used for general hole preparation where a drilled hole and countersunk seat are required in one operation.
- Model: 139-00103
- Tool type: Combination drill and countersink
- Size: #1
- Length: 3" long
- Material designation: HS
- Countersink angle: 60 degrees
