feeler gauge
Insect's feeler is a 'palp'
0.03mm is the least count for feeler gauge
a feeler guage cannot be calibrated, it is made at precise measurements that cannot be changed. When a feeler guage is out of spec, it is replaced.
A kiddie feeler is apparently a person who enjoys feeling and doing inappropriate things with children.
antenae
what a feeler
palp
Feeler
feeler ka
to measure spark plug gap
A .020" feeler gauge.