All insects have six legs. There are many many tiny ones. You need to be more specific.
Ants Earwigs have the pinchers or "cerci" at the back end.
Pinchers in the back sounds like an earwig.
It sounds like the description of an assassin bug. Assassin bugs have a distinct orange head with pinchers for mouthparts, a striped body, and six legs. These bugs are beneficial predators that feed on other insects.
You need to be much more precise. Insects have 6 legs. Spiders and other arachnids have 8 legs. Millipedes and centipedes have many more.
The name of the red, white, and black bug with six legs is a ladybug.
the lobster-like insect is called a 'pseudoscorpion'
The name of the red bug with black legs commonly found in gardens is the "ladybug."
I don't think there are bugs with four legs.
The identification of a skinny orange bug with black legs is likely a type of assassin bug, which is a predatory insect known for its slender body and distinctive coloration.
Pocono
That could very well be a pseudo scorpion. They can be very small and have pinchers. If you would have said it was anything bigger I'd have said an earwig. Look at the links for pics.
a bee