| Answer | Crossword Clue |
|---|---|
| FAN | Machine with blades that don't cut |
| GRASS | Blades that don't cut ... but that are themselves cut |
| roadheader | a tunnelling machine used in mining that excavates with a combination of cutting blades and high-pressure water jets |
| roadheaders | ROADHEADER, a tunnelling machine used in mining that excavates with a combination of cutting blades and high-pressure water jets |
| keyways | A slot cut in a part of a machine or an electrical connector to ensure correct orientation with another part that is fitted with a key |
| keyway | A slot cut in a part of a machine or an electrical connector to ensure correct orientation with another part that is fitted with a key |
