Keyway Nibbler Punch

Eliminates time-consuming hand sawing and filing when making keyways for push-button switches. Use as a nibbler to make wider or deeper keyways. Punches 1/8 IN (3.2 mm) or 3/16 IN (4.8 mm) keyways for 7/8 IN (22.5 mm) or 1-7/32 IN (30.5 mm) push-button holes.