Trimmer Potentiometer (TrimPot) is a small potentiometer which is used for adjustment, tuning and calibration in circuits. When they are used as a variable resistance, they are called preset resistors. They are normally mounted on pcb and adjusted using a screwdriver.
3296W series are multi-turn trimpots which give them higher resolution than single turn preset resistors.
RAJDEEP CHOUDHURY (verified owner)
Quality is quite high.