A working studio's tools sort into four groups: shaping, cutting, finishing and measuring. Almost everything used daily belongs to one of them, and the collection that accumulates over years is mostly duplicates of the same few shapes in different sizes.
Shaping
Ribs in wood, metal and rubber, each doing something different: wood shapes and compresses a wall, metal cuts and refines a profile, rubber smooths without removing material. Most potters own several of each in different curves, and the one that gets used is whichever matches the curve being made.
Cutting and removing
A cutting wire for taking a pot off the wheel and for slicing blocks of clay, a needle tool for trimming rims and testing thickness, and loop or ribbon tools for removing material at leather hard. Trimming tools blunt and are consumable rather than permanent, which is worth knowing before blaming your technique for chatter marks.
Finishing
A sponge, a sponge on a stick for reaching into narrow forms, a chamois for softening a rim, and diamond pads for smoothing fired edges. The last of those is where dust discipline matters: smoothing is done wet, both because the finish is better and because dry work releases silica.
Measuring
Calipers for lids, a ruler and, in a production studio, a set of templates or profiles for repeating a form. Repetition is where measuring earns its place: making six of something the same is a different skill from making one, and it is done with measurements rather than by eye.
Questions people ask about ceramics tools
What tools does a studio actually use daily?
A few ribs and kidneys, a wire, a needle tool, a trimming tool, a sponge and calipers. The rest accumulates and sits.
Do trimming tools wear out?
Yes. A blunt edge chatters rather than cuts, and they are replaceable consumables rather than permanent equipment.
How do I smooth fired edges safely?
Wet, with a diamond pad and water. Dry grinding releases respirable silica and gives a worse finish.