Features:
- Hard metal lock mortiser bit D. 3/4". Thread 1/4" (Imperial System).
- For FC116U model.
- Compatible with the models: 1640127, 1640131, 1640157, 1640177, 1640178, 1640179, 1640180, 1640181, 1640187, 1640367, 1640381, 1640477, 1640478, 1640481, FC116U